<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019edb4e-ff13-7d73-a25a-6063c53ab035,g:2442d069-98a5-4f76-aaca-b582cee6c869-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://weedmaps.com/role/CoverPage" xlink:type="simple" xlink:href="maps-20260630.xsd#CoverPage"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/CoverPage" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitiesTable_019edb4e-ffdc-76af-af87-abe837d53938" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntitiesTable_019edb4e-ffdc-76af-af87-abe837d53938" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019edb4e-ffdc-7cd4-89b3-576a05e25797" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_EntitiesTable_019edb4e-ffdc-76af-af87-abe837d53938" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019edb4e-ffdc-7cd4-89b3-576a05e25797" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4e-ffdc-7cd4-89b3-576a05e25797_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4e-ffdc-7cd4-89b3-576a05e25797" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4e-ffdc-7cd4-89b3-576a05e25797_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4e-ffdc-7958-9bc8-6b805acceb6a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4e-ffdc-7cd4-89b3-576a05e25797" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4e-ffdc-7958-9bc8-6b805acceb6a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019f8502-68bd-7964-b394-6b3501359bb0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019edb4e-ffdc-7958-9bc8-6b805acceb6a" xlink:to="loc_us-gaap_CommonClassAMember_019f8502-68bd-7964-b394-6b3501359bb0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_CommonClassVMember_019edb4e-ffdc-7ed1-969a-fe8ffccee327" xlink:href="maps-20260630.xsd#maps_CommonClassVMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019edb4e-ffdc-7958-9bc8-6b805acceb6a" xlink:to="loc_maps_CommonClassVMember_019edb4e-ffdc-7ed1-969a-fe8ffccee327" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019edb4e-ffdc-7713-901f-2eb36e6c335b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_DocumentType_019edb4e-ffdc-7713-901f-2eb36e6c335b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_019edb4e-ffdc-7a4b-8c97-2be14f7724f0" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentQuarterlyReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_DocumentQuarterlyReport_019edb4e-ffdc-7a4b-8c97-2be14f7724f0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019edb4e-ffdc-7348-a555-328d7f499171" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_DocumentPeriodEndDate_019edb4e-ffdc-7348-a555-328d7f499171" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_019edb4e-ffdc-7ca6-ad54-8d29c723d9b9" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentTransitionReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_DocumentTransitionReport_019edb4e-ffdc-7ca6-ad54-8d29c723d9b9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019edb4e-ffdc-7c10-996d-b7cd9a088a53" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntityFileNumber_019edb4e-ffdc-7c10-996d-b7cd9a088a53" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019edb4e-ffdc-76ba-9226-4312d68fd2cf" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntityRegistrantName_019edb4e-ffdc-76ba-9226-4312d68fd2cf" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019edb4e-ffdc-7177-944d-9d3e734cdecb" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019edb4e-ffdc-7177-944d-9d3e734cdecb" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019edb4e-ffdc-7965-81ec-e5fa50ba92b4" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntityTaxIdentificationNumber_019edb4e-ffdc-7965-81ec-e5fa50ba92b4" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019edb4e-ffdc-71b5-9319-1c9c664872ad" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntityAddressAddressLine1_019edb4e-ffdc-71b5-9319-1c9c664872ad" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019edb4e-ffdc-7b5c-9271-fd44c80ad68f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntityAddressCityOrTown_019edb4e-ffdc-7b5c-9271-fd44c80ad68f" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019edb4e-ffdc-7e33-a82f-9259bfa2f1f4" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntityAddressStateOrProvince_019edb4e-ffdc-7e33-a82f-9259bfa2f1f4" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019edb4e-ffdc-76b4-8402-7d98825049a4" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntityAddressPostalZipCode_019edb4e-ffdc-76b4-8402-7d98825049a4" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019edb4e-ffdc-7f33-97ed-03457b637b5f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_CityAreaCode_019edb4e-ffdc-7f33-97ed-03457b637b5f" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019edb4e-ffdc-7831-bf7b-5f4d6bba2c71" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_LocalPhoneNumber_019edb4e-ffdc-7831-bf7b-5f4d6bba2c71" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019edb4e-ffdc-7493-baaa-0030a4ffaad8" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_Security12bTitle_019edb4e-ffdc-7493-baaa-0030a4ffaad8" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019edb4e-ffdc-73fa-a3d8-cb76ea0c949b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_TradingSymbol_019edb4e-ffdc-73fa-a3d8-cb76ea0c949b" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_019edb4e-ffdc-7a13-9b7b-5a96c17f4c74" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCurrentReportingStatus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntityCurrentReportingStatus_019edb4e-ffdc-7a13-9b7b-5a96c17f4c74" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_019edb4e-ffdc-7971-af28-fe524eba1014" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntityInteractiveDataCurrent_019edb4e-ffdc-7971-af28-fe524eba1014" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_019edb4e-ffdc-7d25-9993-32b9e0f56e07" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityFilerCategory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntityFilerCategory_019edb4e-ffdc-7d25-9993-32b9e0f56e07" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_019edb4e-ffdc-7611-9717-abc7f3735f14" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntitySmallBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntitySmallBusiness_019edb4e-ffdc-7611-9717-abc7f3735f14" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019edb4e-ffdc-7c3b-8ea4-5c49f60e82d9" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntityEmergingGrowthCompany_019edb4e-ffdc-7c3b-8ea4-5c49f60e82d9" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_019edb4e-ffdc-7e2f-b3d7-98f9bdf29c50" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityShellCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntityShellCompany_019edb4e-ffdc-7e2f-b3d7-98f9bdf29c50" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_019edb4e-ffdc-79aa-bca5-83a8ce45ac11" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_019edb4e-ffdc-79aa-bca5-83a8ce45ac11" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_019edb4e-ffdc-7792-b447-259267364fef" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_CurrentFiscalYearEndDate_019edb4e-ffdc-7792-b447-259267364fef" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019edb4e-ffdc-7f5b-af27-42b957e31843" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_EntityCentralIndexKey_019edb4e-ffdc-7f5b-af27-42b957e31843" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_019edb4e-ffdc-758b-ace1-e4056e0158f0" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentFiscalYearFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_DocumentFiscalYearFocus_019edb4e-ffdc-758b-ace1-e4056e0158f0" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_019edb4e-ffdc-7ed8-b655-2b56cb67defa" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_DocumentFiscalPeriodFocus_019edb4e-ffdc-7ed8-b655-2b56cb67defa" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019edb4e-ffdc-74b3-aff4-a20009cbbd99" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityInformationLineItems_019edb4e-ffdc-7672-bc28-9e9bad8cf54b" xlink:to="loc_dei_AmendmentFlag_019edb4e-ffdc-74b3-aff4-a20009cbbd99" xlink:type="arc" order="27"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="maps-20260630.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019edb4e-ffdc-777e-8d39-a68a092984e3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019edb4e-ffdc-768d-a711-4a9d97ece763" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019edb4e-ffdc-777e-8d39-a68a092984e3" xlink:to="loc_us-gaap_StatementTable_019edb4e-ffdc-768d-a711-4a9d97ece763" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019edb4e-ffdc-75ed-af3a-af43877daedf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019edb4e-ffdc-768d-a711-4a9d97ece763" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019edb4e-ffdc-75ed-af3a-af43877daedf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4e-ffdc-75ed-af3a-af43877daedf_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4e-ffdc-75ed-af3a-af43877daedf" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4e-ffdc-75ed-af3a-af43877daedf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4e-ffdc-78ae-9ffd-c92767be27b3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4e-ffdc-75ed-af3a-af43877daedf" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4e-ffdc-78ae-9ffd-c92767be27b3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019edb4e-ffdc-713d-9749-97fddaee9ead" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019edb4e-ffdc-78ae-9ffd-c92767be27b3" xlink:to="loc_us-gaap_CommonClassAMember_019edb4e-ffdc-713d-9749-97fddaee9ead" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_CommonClassVMember_019edb4e-ffdc-7c77-a394-ebe1784fff49" xlink:href="maps-20260630.xsd#maps_CommonClassVMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019edb4e-ffdc-78ae-9ffd-c92767be27b3" xlink:to="loc_maps_CommonClassVMember_019edb4e-ffdc-7c77-a394-ebe1784fff49" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_019edb4e-ffdc-7487-a94c-aeaa14bc6218" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4e-ffdc-777e-8d39-a68a092984e3" xlink:to="loc_us-gaap_AssetsAbstract_019edb4e-ffdc-7487-a94c-aeaa14bc6218" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract_019edb4e-ffdc-74c0-87e2-2f00207ac68c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019edb4e-ffdc-7487-a94c-aeaa14bc6218" xlink:to="loc_us-gaap_AssetsCurrentAbstract_019edb4e-ffdc-74c0-87e2-2f00207ac68c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019edb4e-ffdc-7fc9-b68c-49ec55b19a94" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019edb4e-ffdc-74c0-87e2-2f00207ac68c" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_019edb4e-ffdc-7fc9-b68c-49ec55b19a94" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_019edb4e-ffdc-7efa-831f-74ed4a67747d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019edb4e-ffdc-74c0-87e2-2f00207ac68c" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_019edb4e-ffdc-7efa-831f-74ed4a67747d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019edb4e-ffdc-7561-8fcd-64f4c1f11d62" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019edb4e-ffdc-74c0-87e2-2f00207ac68c" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_019edb4e-ffdc-7561-8fcd-64f4c1f11d62" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_019edb4e-ffdc-7366-ac47-f6654e34fc17" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_019edb4e-ffdc-74c0-87e2-2f00207ac68c" xlink:to="loc_us-gaap_AssetsCurrent_019edb4e-ffdc-7366-ac47-f6654e34fc17" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019edb4e-ffdc-73fa-ad4d-ab9c01307f19" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019edb4e-ffdc-7487-a94c-aeaa14bc6218" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_019edb4e-ffdc-73fa-ad4d-ab9c01307f19" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019edb4e-ffdc-7d84-8fdb-7c647e654225" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019edb4e-ffdc-7487-a94c-aeaa14bc6218" xlink:to="loc_us-gaap_Goodwill_019edb4e-ffdc-7d84-8fdb-7c647e654225" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019edb4e-ffdc-74b2-bbed-2c1e0fa260ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019edb4e-ffdc-7487-a94c-aeaa14bc6218" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019edb4e-ffdc-74b2-bbed-2c1e0fa260ed" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019edb4e-ffdc-7239-a3d0-18aa3a4b33c0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019edb4e-ffdc-7487-a94c-aeaa14bc6218" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019edb4e-ffdc-7239-a3d0-18aa3a4b33c0" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_019edb4e-ffdc-7eac-ad40-a177501e4c66" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019edb4e-ffdc-7487-a94c-aeaa14bc6218" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_019edb4e-ffdc-7eac-ad40-a177501e4c66" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_019edb4e-ffdc-7180-a586-62827323e0ba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_019edb4e-ffdc-7487-a94c-aeaa14bc6218" xlink:to="loc_us-gaap_Assets_019edb4e-ffdc-7180-a586-62827323e0ba" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019edb4e-ffdc-7262-b055-ba94dc575aae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4e-ffdc-777e-8d39-a68a092984e3" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019edb4e-ffdc-7262-b055-ba94dc575aae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_019edb4e-ffdc-7e55-a22d-fe4c9ad87da8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019edb4e-ffdc-7262-b055-ba94dc575aae" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_019edb4e-ffdc-7e55-a22d-fe4c9ad87da8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_019edb4e-ffdc-776f-9099-bc60b354bbcc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019edb4e-ffdc-7e55-a22d-fe4c9ad87da8" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_019edb4e-ffdc-776f-9099-bc60b354bbcc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019edb4e-ffdc-7e32-8497-44d194e9a18d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019edb4e-ffdc-7e55-a22d-fe4c9ad87da8" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019edb4e-ffdc-7e32-8497-44d194e9a18d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_019edb4e-ffdc-7b55-ac1a-6cf01fc1ad05" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019edb4e-ffdc-7e55-a22d-fe4c9ad87da8" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_019edb4e-ffdc-7b55-ac1a-6cf01fc1ad05" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_TaxReceivableAgreementLiabilityCurrent_019edb4e-ffdc-7353-b947-113f107e2970" xlink:href="maps-20260630.xsd#maps_TaxReceivableAgreementLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019edb4e-ffdc-7e55-a22d-fe4c9ad87da8" xlink:to="loc_maps_TaxReceivableAgreementLiabilityCurrent_019edb4e-ffdc-7353-b947-113f107e2970" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_WarrantsAndRightsOutstandingCurrent_019edb4e-ffdc-7201-ae08-1d82ec1c1236" xlink:href="maps-20260630.xsd#maps_WarrantsAndRightsOutstandingCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019edb4e-ffdc-7e55-a22d-fe4c9ad87da8" xlink:to="loc_maps_WarrantsAndRightsOutstandingCurrent_019edb4e-ffdc-7201-ae08-1d82ec1c1236" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_019edb4e-ffdc-7199-8343-8e9d27b7ad39" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_019edb4e-ffdc-7e55-a22d-fe4c9ad87da8" xlink:to="loc_us-gaap_LiabilitiesCurrent_019edb4e-ffdc-7199-8343-8e9d27b7ad39" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019edb4e-ffdc-7aa3-8498-0de9038db4b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019edb4e-ffdc-7262-b055-ba94dc575aae" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_019edb4e-ffdc-7aa3-8498-0de9038db4b1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_019edb4e-ffdc-7ebe-b96e-9034444839dd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019edb4e-ffdc-7262-b055-ba94dc575aae" xlink:to="loc_us-gaap_Liabilities_019edb4e-ffdc-7ebe-b96e-9034444839dd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_019edb4e-ffdc-7641-99c3-20480c4e3074" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019edb4e-ffdc-7262-b055-ba94dc575aae" xlink:to="loc_us-gaap_CommitmentsAndContingencies_019edb4e-ffdc-7641-99c3-20480c4e3074" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019edb4e-ffdc-7912-85c8-897066fc7119" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019edb4e-ffdc-7262-b055-ba94dc575aae" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019edb4e-ffdc-7912-85c8-897066fc7119" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_019edb4e-ffdc-7fe5-9aaf-5afdd5b54bdd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019edb4e-ffdc-7912-85c8-897066fc7119" xlink:to="loc_us-gaap_PreferredStockValue_019edb4e-ffdc-7fe5-9aaf-5afdd5b54bdd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_019edb4e-ffdc-7694-a400-ed76f2d8de1c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019edb4e-ffdc-7912-85c8-897066fc7119" xlink:to="loc_us-gaap_CommonStockValue_019edb4e-ffdc-7694-a400-ed76f2d8de1c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_019edb4e-ffdc-74d4-b865-46ff7c52f372" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019edb4e-ffdc-7912-85c8-897066fc7119" xlink:to="loc_us-gaap_AdditionalPaidInCapital_019edb4e-ffdc-74d4-b865-46ff7c52f372" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019edb4e-ffdc-777d-9454-1bad85f3c86a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019edb4e-ffdc-7912-85c8-897066fc7119" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_019edb4e-ffdc-777d-9454-1bad85f3c86a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019edb4e-ffdc-79b1-a9fb-296b5c51ce2a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019edb4e-ffdc-7912-85c8-897066fc7119" xlink:to="loc_us-gaap_StockholdersEquity_019edb4e-ffdc-79b1-a9fb-296b5c51ce2a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_019edb4e-ffdc-7d7d-b28b-7bbf466ba96b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019edb4e-ffdc-7912-85c8-897066fc7119" xlink:to="loc_us-gaap_MinorityInterest_019edb4e-ffdc-7d7d-b28b-7bbf466ba96b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019edb4e-ffdc-7bb6-8f83-12e4c7b3a3f3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_019edb4e-ffdc-7912-85c8-897066fc7119" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019edb4e-ffdc-7bb6-8f83-12e4c7b3a3f3" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_019edb4e-ffdc-7249-a0a1-0e0a4cf981b5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_019edb4e-ffdc-7262-b055-ba94dc575aae" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_019edb4e-ffdc-7249-a0a1-0e0a4cf981b5" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="simple" xlink:href="maps-20260630.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019edb4f-00a7-75b8-8d65-2b53b5b5b27b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019edb4f-00a7-7d67-8b76-4035552056b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-75b8-8d65-2b53b5b5b27b" xlink:to="loc_us-gaap_StatementTable_019edb4f-00a7-7d67-8b76-4035552056b6" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7753-aa8b-90180405a521" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019edb4f-00a7-7d67-8b76-4035552056b6" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7753-aa8b-90180405a521" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7753-aa8b-90180405a521_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7753-aa8b-90180405a521" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7753-aa8b-90180405a521_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7cf8-b835-264066a91cc1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7753-aa8b-90180405a521" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7cf8-b835-264066a91cc1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019edb4f-00a7-7dee-8d70-e0c0ebb8d304" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7cf8-b835-264066a91cc1" xlink:to="loc_us-gaap_CommonClassAMember_019edb4f-00a7-7dee-8d70-e0c0ebb8d304" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_CommonClassVMember_019edb4f-00a7-7055-9aa1-34d01bc25afb" xlink:href="maps-20260630.xsd#maps_CommonClassVMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7cf8-b835-264066a91cc1" xlink:to="loc_maps_CommonClassVMember_019edb4f-00a7-7055-9aa1-34d01bc25afb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019edb4f-00a7-773d-8f01-07a79f985ce4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-75b8-8d65-2b53b5b5b27b" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_019edb4f-00a7-773d-8f01-07a79f985ce4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_019edb4f-00a7-7420-aa01-470096288d1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-75b8-8d65-2b53b5b5b27b" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_019edb4f-00a7-7420-aa01-470096288d1a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_019edb4f-00a7-7be2-b5f7-aef76c8f61a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-75b8-8d65-2b53b5b5b27b" xlink:to="loc_us-gaap_PreferredStockSharesIssued_019edb4f-00a7-7be2-b5f7-aef76c8f61a9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_019edb4f-00a7-7932-896c-7902a357e262" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-75b8-8d65-2b53b5b5b27b" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_019edb4f-00a7-7932-896c-7902a357e262" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_019edb4f-00a7-7ce9-a377-3093b20fc8a7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-75b8-8d65-2b53b5b5b27b" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_019edb4f-00a7-7ce9-a377-3093b20fc8a7" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_019edb4f-00a7-77d9-9bff-5653be9eeec0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-75b8-8d65-2b53b5b5b27b" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_019edb4f-00a7-77d9-9bff-5653be9eeec0" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_019edb4f-00a7-7b9f-82af-624395a6973d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-75b8-8d65-2b53b5b5b27b" xlink:to="loc_us-gaap_CommonStockSharesIssued_019edb4f-00a7-7b9f-82af-624395a6973d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019edb4f-00a7-73ee-a8aa-b0e45c3a7865" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-75b8-8d65-2b53b5b5b27b" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019edb4f-00a7-73ee-a8aa-b0e45c3a7865" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="simple" xlink:href="maps-20260630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019edb4f-00a7-7325-ab60-1092089d94ee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019edb4f-00a7-7263-826b-1ee2afa2591a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-7325-ab60-1092089d94ee" xlink:to="loc_us-gaap_StatementTable_019edb4f-00a7-7263-826b-1ee2afa2591a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-746a-bcd3-aa51472fd085" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019edb4f-00a7-7263-826b-1ee2afa2591a" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-746a-bcd3-aa51472fd085" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-746a-bcd3-aa51472fd085_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-746a-bcd3-aa51472fd085" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-746a-bcd3-aa51472fd085_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-76a8-87bf-53195e8ca1ce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-746a-bcd3-aa51472fd085" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-76a8-87bf-53195e8ca1ce" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019edb4f-00a7-72f9-ac27-643661303c0e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-76a8-87bf-53195e8ca1ce" xlink:to="loc_us-gaap_CommonClassAMember_019edb4f-00a7-72f9-ac27-643661303c0e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019edb4f-00a7-7218-a44b-32d916d79f62" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-7325-ab60-1092089d94ee" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019edb4f-00a7-7218-a44b-32d916d79f62" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract_019edb4f-00a7-7229-8848-dfea13c50214" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-7325-ab60-1092089d94ee" xlink:to="loc_us-gaap_OperatingExpensesAbstract_019edb4f-00a7-7229-8848-dfea13c50214" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_019edb4f-00a7-7ffc-8167-072343f295e8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019edb4f-00a7-7229-8848-dfea13c50214" xlink:to="loc_us-gaap_CostOfRevenue_019edb4f-00a7-7ffc-8167-072343f295e8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingAndMarketingExpense_019edb4f-00a7-709f-ab4b-68047e4ffb37" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SellingAndMarketingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019edb4f-00a7-7229-8848-dfea13c50214" xlink:to="loc_us-gaap_SellingAndMarketingExpense_019edb4f-00a7-709f-ab4b-68047e4ffb37" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_019edb4f-00a7-7f09-bfbe-2fa39de4c87e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019edb4f-00a7-7229-8848-dfea13c50214" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_019edb4f-00a7-7f09-bfbe-2fa39de4c87e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_019edb4f-00a7-710e-b939-9c0723c6a10d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019edb4f-00a7-7229-8848-dfea13c50214" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_019edb4f-00a7-710e-b939-9c0723c6a10d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_019edb4f-00a7-7685-8024-494df7ddaa1a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019edb4f-00a7-7229-8848-dfea13c50214" xlink:to="loc_us-gaap_DepreciationAndAmortization_019edb4f-00a7-7685-8024-494df7ddaa1a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_019edb4f-00a7-7843-9fb0-97ea29cf2f8b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostsAndExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_019edb4f-00a7-7229-8848-dfea13c50214" xlink:to="loc_us-gaap_CostsAndExpenses_019edb4f-00a7-7843-9fb0-97ea29cf2f8b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_019edb4f-00a7-7664-a065-f23221b4be59" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-7325-ab60-1092089d94ee" xlink:to="loc_us-gaap_OperatingIncomeLoss_019edb4f-00a7-7664-a065-f23221b4be59" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019edb4f-00a7-7ab2-800c-e24058fe3fbd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NonoperatingIncomeExpenseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-7325-ab60-1092089d94ee" xlink:to="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019edb4f-00a7-7ab2-800c-e24058fe3fbd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_019edb4f-00a7-7c01-8d99-a093ee711ba3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019edb4f-00a7-7ab2-800c-e24058fe3fbd" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_019edb4f-00a7-7c01-8d99-a093ee711ba3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ChangeInTaxReceivableAgreementLiability_019edb4f-00a7-73b5-b99b-4f68e08783cb" xlink:href="maps-20260630.xsd#maps_ChangeInTaxReceivableAgreementLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019edb4f-00a7-7ab2-800c-e24058fe3fbd" xlink:to="loc_maps_ChangeInTaxReceivableAgreementLiability_019edb4f-00a7-73b5-b99b-4f68e08783cb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_019edb4f-00a7-7bc7-b0df-16f88a75144d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_019edb4f-00a7-7ab2-800c-e24058fe3fbd" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_019edb4f-00a7-7bc7-b0df-16f88a75144d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019edb4f-00a7-7df5-a95d-cfcf2d7df747" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-7325-ab60-1092089d94ee" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019edb4f-00a7-7df5-a95d-cfcf2d7df747" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019edb4f-00a7-72ea-a511-a0db12a00ab9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-7325-ab60-1092089d94ee" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019edb4f-00a7-72ea-a511-a0db12a00ab9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019edb4f-00a7-7acf-a8b2-dc99461f1983" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-7325-ab60-1092089d94ee" xlink:to="loc_us-gaap_ProfitLoss_019edb4f-00a7-7acf-a8b2-dc99461f1983" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019edb4f-00a7-728a-b8a5-adf968910de8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-7325-ab60-1092089d94ee" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_019edb4f-00a7-728a-b8a5-adf968910de8" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019edb4f-00a7-775e-835a-451c7f461e5f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-7325-ab60-1092089d94ee" xlink:to="loc_us-gaap_NetIncomeLoss_019edb4f-00a7-775e-835a-451c7f461e5f" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_019edb4f-00a7-7829-97b4-37574f0b7690" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-7325-ab60-1092089d94ee" xlink:to="loc_us-gaap_EarningsPerShareAbstract_019edb4f-00a7-7829-97b4-37574f0b7690" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_019edb4f-00a7-7bd1-bdab-cf48e750adf7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_019edb4f-00a7-7829-97b4-37574f0b7690" xlink:to="loc_us-gaap_EarningsPerShareBasic_019edb4f-00a7-7bd1-bdab-cf48e750adf7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_019edb4f-00a7-7d60-a22d-94e8175c0d4c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_019edb4f-00a7-7829-97b4-37574f0b7690" xlink:to="loc_us-gaap_EarningsPerShareDiluted_019edb4f-00a7-7d60-a22d-94e8175c0d4c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_EarningsPerShareOtherDisclosureAbstract_019edb4f-00a7-7bda-b7fe-6a0e3ff6f218" xlink:href="maps-20260630.xsd#maps_EarningsPerShareOtherDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-7325-ab60-1092089d94ee" xlink:to="loc_maps_EarningsPerShareOtherDisclosureAbstract_019edb4f-00a7-7bda-b7fe-6a0e3ff6f218" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019edb4f-00a7-791b-b333-24538feac01a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_EarningsPerShareOtherDisclosureAbstract_019edb4f-00a7-7bda-b7fe-6a0e3ff6f218" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019edb4f-00a7-791b-b333-24538feac01a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019edb4f-00a7-78d4-8819-5a111437ab25" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_EarningsPerShareOtherDisclosureAbstract_019edb4f-00a7-7bda-b7fe-6a0e3ff6f218" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019edb4f-00a7-78d4-8819-5a111437ab25" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFEQUITY" xlink:type="simple" xlink:href="maps-20260630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFEQUITY"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFEQUITY" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019edb4f-00a7-7b72-b02d-d9889519725d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019edb4f-00a7-74d9-908c-5a2fea383144" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-7b72-b02d-d9889519725d" xlink:to="loc_us-gaap_StatementTable_019edb4f-00a7-74d9-908c-5a2fea383144" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019edb4f-00a7-761a-9d37-738c50f890d5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019edb4f-00a7-74d9-908c-5a2fea383144" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019edb4f-00a7-761a-9d37-738c50f890d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019edb4f-00a7-761a-9d37-738c50f890d5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019edb4f-00a7-761a-9d37-738c50f890d5" xlink:to="loc_us-gaap_EquityComponentDomain_019edb4f-00a7-761a-9d37-738c50f890d5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019edb4f-00a7-7170-8bdb-dc621e3bf38c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019edb4f-00a7-761a-9d37-738c50f890d5" xlink:to="loc_us-gaap_EquityComponentDomain_019edb4f-00a7-7170-8bdb-dc621e3bf38c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParentMember_019edb4f-00a7-7819-a71d-8861ad55b865" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019edb4f-00a7-7170-8bdb-dc621e3bf38c" xlink:to="loc_us-gaap_ParentMember_019edb4f-00a7-7819-a71d-8861ad55b865" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019edb4f-00a7-741e-a411-75aba8293c72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_019edb4f-00a7-7819-a71d-8861ad55b865" xlink:to="loc_us-gaap_CommonStockMember_019edb4f-00a7-741e-a411-75aba8293c72" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019f84be-e5a3-7a55-bfb7-14d4b7402e5d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_019edb4f-00a7-7819-a71d-8861ad55b865" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019f84be-e5a3-7a55-bfb7-14d4b7402e5d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_019edb4f-00a7-71b8-abc3-0447dedff9a2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_019edb4f-00a7-7819-a71d-8861ad55b865" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_019edb4f-00a7-71b8-abc3-0447dedff9a2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_019edb4f-00a7-77b0-b147-1155b5679da3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_019edb4f-00a7-7819-a71d-8861ad55b865" xlink:to="loc_us-gaap_RetainedEarningsMember_019edb4f-00a7-77b0-b147-1155b5679da3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestMember_019edb4f-00a7-7f68-8a23-856d9f8c81de" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NoncontrollingInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019edb4f-00a7-7170-8bdb-dc621e3bf38c" xlink:to="loc_us-gaap_NoncontrollingInterestMember_019edb4f-00a7-7f68-8a23-856d9f8c81de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7b73-90c8-a6d6aa369196" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019edb4f-00a7-74d9-908c-5a2fea383144" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7b73-90c8-a6d6aa369196" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7b73-90c8-a6d6aa369196_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7b73-90c8-a6d6aa369196" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7b73-90c8-a6d6aa369196_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7505-8af8-4c0ae4e70c58" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7b73-90c8-a6d6aa369196" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7505-8af8-4c0ae4e70c58" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019edb4f-00a7-74c4-b0d0-e194b6891a7f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7505-8af8-4c0ae4e70c58" xlink:to="loc_us-gaap_CommonClassAMember_019edb4f-00a7-74c4-b0d0-e194b6891a7f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_CommonClassVMember_019edb4f-00a7-7e5e-8579-d22a60e85159" xlink:href="maps-20260630.xsd#maps_CommonClassVMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7505-8af8-4c0ae4e70c58" xlink:to="loc_maps_CommonClassVMember_019edb4f-00a7-7e5e-8579-d22a60e85159" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-77eb-a2e2-011e4c52aef2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019edb4f-00a7-74d9-908c-5a2fea383144" xlink:to="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-77eb-a2e2-011e4c52aef2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-77eb-a2e2-011e4c52aef2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-77eb-a2e2-011e4c52aef2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-77eb-a2e2-011e4c52aef2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7f06-a848-3cdf8fc72621" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-77eb-a2e2-011e4c52aef2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7f06-a848-3cdf8fc72621" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ClassAUnitsMember_019edb4f-00a7-7a41-9a5a-9287b7b8930b" xlink:href="maps-20260630.xsd#maps_ClassAUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7f06-a848-3cdf8fc72621" xlink:to="loc_maps_ClassAUnitsMember_019edb4f-00a7-7a41-9a5a-9287b7b8930b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ClassPUnitsMember_019edb4f-00a7-7ff8-b543-700250817e61" xlink:href="maps-20260630.xsd#maps_ClassPUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7f06-a848-3cdf8fc72621" xlink:to="loc_maps_ClassPUnitsMember_019edb4f-00a7-7ff8-b543-700250817e61" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019edb4f-00a7-71d1-82e0-0db9066a68e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019edb4f-00a7-7b72-b02d-d9889519725d" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019edb4f-00a7-71d1-82e0-0db9066a68e7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019edb4f-00a7-738a-8cd1-92f63fff1c1c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019edb4f-00a7-71d1-82e0-0db9066a68e7" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019edb4f-00a7-738a-8cd1-92f63fff1c1c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019edb4f-00a7-7e54-aa6d-3e39ec771e1d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019edb4f-00a7-71d1-82e0-0db9066a68e7" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019edb4f-00a7-7e54-aa6d-3e39ec771e1d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019edb4f-00a7-7d27-a20b-a8db0e6a2a0c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019edb4f-00a7-71d1-82e0-0db9066a68e7" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019edb4f-00a7-7d27-a20b-a8db0e6a2a0c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_019edb4f-00a7-730c-9040-e5b23d4a63c0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019edb4f-00a7-71d1-82e0-0db9066a68e7" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_019edb4f-00a7-730c-9040-e5b23d4a63c0" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_019edb4f-00a7-7862-bd63-6e93b97ab636" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019edb4f-00a7-71d1-82e0-0db9066a68e7" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_019edb4f-00a7-7862-bd63-6e93b97ab636" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared_019edb4f-00a7-75f3-8fec-830632f4f2fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019edb4f-00a7-71d1-82e0-0db9066a68e7" xlink:to="loc_us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsDeclared_019edb4f-00a7-75f3-8fec-830632f4f2fd" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ExchangeOfUnitsForCommonStockShares_019edb4f-00a7-70ae-b40e-93d724f36608" xlink:href="maps-20260630.xsd#maps_ExchangeOfUnitsForCommonStockShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019edb4f-00a7-71d1-82e0-0db9066a68e7" xlink:to="loc_maps_ExchangeOfUnitsForCommonStockShares_019edb4f-00a7-70ae-b40e-93d724f36608" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ExchangeOfCommonUnitsForCommonStockValues_019edb4f-00a7-7a02-9f6f-a966375c6556" xlink:href="maps-20260630.xsd#maps_ExchangeOfCommonUnitsForCommonStockValues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019edb4f-00a7-71d1-82e0-0db9066a68e7" xlink:to="loc_maps_ExchangeOfCommonUnitsForCommonStockValues_019edb4f-00a7-7a02-9f6f-a966375c6556" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019f0923-b589-742c-9d23-832f2b302f1b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019edb4f-00a7-71d1-82e0-0db9066a68e7" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019f0923-b589-742c-9d23-832f2b302f1b" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019edb4f-00a7-79a7-a9ad-04bd0ac75dfe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019edb4f-00a7-71d1-82e0-0db9066a68e7" xlink:to="loc_us-gaap_ProfitLoss_019edb4f-00a7-79a7-a9ad-04bd0ac75dfe" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019edb4f-00a7-7dfe-922a-a8d3040b39ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_019edb4f-00a7-737a-99e6-9bee130e8847" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/SummaryofSignificantAccountingPoliciesAdditionalInformationDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#SummaryofSignificantAccountingPoliciesAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/SummaryofSignificantAccountingPoliciesAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:href="maps-20260630.xsd#maps_AccountingPoliciesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_AccountingPoliciesTable_019edb4f-00a7-7ed2-8394-cf371a556ab4" xlink:href="maps-20260630.xsd#maps_AccountingPoliciesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_maps_AccountingPoliciesTable_019edb4f-00a7-7ed2-8394-cf371a556ab4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019edb4f-00a7-74a1-b8ae-7462a6f84c3a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_maps_AccountingPoliciesTable_019edb4f-00a7-7ed2-8394-cf371a556ab4" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019edb4f-00a7-74a1-b8ae-7462a6f84c3a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019edb4f-00a7-74a1-b8ae-7462a6f84c3a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019edb4f-00a7-74a1-b8ae-7462a6f84c3a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019edb4f-00a7-74a1-b8ae-7462a6f84c3a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019edb4f-00a7-7351-af5a-ff6bb36d3e4f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019edb4f-00a7-74a1-b8ae-7462a6f84c3a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019edb4f-00a7-7351-af5a-ff6bb36d3e4f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComputerEquipmentMember_019edb4f-00a7-73c1-af43-1f2109eef03f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ComputerEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019edb4f-00a7-7351-af5a-ff6bb36d3e4f" xlink:to="loc_us-gaap_ComputerEquipmentMember_019edb4f-00a7-73c1-af43-1f2109eef03f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_019edb4f-00a7-7801-a5af-9e0e29108741" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FurnitureAndFixturesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019edb4f-00a7-7351-af5a-ff6bb36d3e4f" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_019edb4f-00a7-7801-a5af-9e0e29108741" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_019edb4f-00a7-706f-b7b7-6e9f7d403406" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SoftwareDevelopmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019edb4f-00a7-7351-af5a-ff6bb36d3e4f" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_019edb4f-00a7-706f-b7b7-6e9f7d403406" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_EnhancementsMember_019edb4f-00a7-7fdc-aec5-efa983d5a9f8" xlink:href="maps-20260630.xsd#maps_EnhancementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019edb4f-00a7-7351-af5a-ff6bb36d3e4f" xlink:to="loc_maps_EnhancementsMember_019edb4f-00a7-7fdc-aec5-efa983d5a9f8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_019fc848-9ece-7743-8d06-c4c17847c562" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019edb4f-00a7-7351-af5a-ff6bb36d3e4f" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_019fc848-9ece-7743-8d06-c4c17847c562" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-7a77-b909-d12a63eb8fb8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_maps_AccountingPoliciesTable_019edb4f-00a7-7ed2-8394-cf371a556ab4" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-7a77-b909-d12a63eb8fb8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7a77-b909-d12a63eb8fb8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-7a77-b909-d12a63eb8fb8" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7a77-b909-d12a63eb8fb8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7431-9349-a3c95c12a96e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-7a77-b909-d12a63eb8fb8" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7431-9349-a3c95c12a96e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_PublicWarrantsMember_019edb4f-00a7-7aae-834f-c754f96eae94" xlink:href="maps-20260630.xsd#maps_PublicWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7431-9349-a3c95c12a96e" xlink:to="loc_maps_PublicWarrantsMember_019edb4f-00a7-7aae-834f-c754f96eae94" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_PrivatePlacementWarrantMember_019edb4f-00a7-7b25-973b-f066232ff454" xlink:href="maps-20260630.xsd#maps_PrivatePlacementWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7431-9349-a3c95c12a96e" xlink:to="loc_maps_PrivatePlacementWarrantMember_019edb4f-00a7-7b25-973b-f066232ff454" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7a1d-849b-3d09965a66c8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_maps_AccountingPoliciesTable_019edb4f-00a7-7ed2-8394-cf371a556ab4" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7a1d-849b-3d09965a66c8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7a1d-849b-3d09965a66c8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7a1d-849b-3d09965a66c8" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7a1d-849b-3d09965a66c8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7f29-b4f2-1cde55442c01" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7a1d-849b-3d09965a66c8" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7f29-b4f2-1cde55442c01" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019edb4f-00a7-7b66-a5d2-179b643e0884" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7f29-b4f2-1cde55442c01" xlink:to="loc_us-gaap_CommonClassAMember_019edb4f-00a7-7b66-a5d2-179b643e0884" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019edb4f-00a7-7427-b0b6-82cdef65a333" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_maps_AccountingPoliciesTable_019edb4f-00a7-7ed2-8394-cf371a556ab4" xlink:to="loc_srt_ProductOrServiceAxis_019edb4f-00a7-7427-b0b6-82cdef65a333" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019edb4f-00a7-7427-b0b6-82cdef65a333_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_019edb4f-00a7-7427-b0b6-82cdef65a333" xlink:to="loc_srt_ProductsAndServicesDomain_019edb4f-00a7-7427-b0b6-82cdef65a333_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019edb4f-00a7-7d24-b62c-fa5b5a90e4d0" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_019edb4f-00a7-7427-b0b6-82cdef65a333" xlink:to="loc_srt_ProductsAndServicesDomain_019edb4f-00a7-7d24-b62c-fa5b5a90e4d0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_SalesDiscountMember_019edb4f-00a7-7422-bd5b-8169eda5cec3" xlink:href="maps-20260630.xsd#maps_SalesDiscountMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019edb4f-00a7-7d24-b62c-fa5b5a90e4d0" xlink:to="loc_maps_SalesDiscountMember_019edb4f-00a7-7422-bd5b-8169eda5cec3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019edb4f-00a7-755f-a127-e8cd208e5286" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_maps_AccountingPoliciesTable_019edb4f-00a7-7ed2-8394-cf371a556ab4" xlink:to="loc_srt_RangeAxis_019edb4f-00a7-755f-a127-e8cd208e5286" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019edb4f-00a7-755f-a127-e8cd208e5286_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019edb4f-00a7-755f-a127-e8cd208e5286" xlink:to="loc_srt_RangeMember_019edb4f-00a7-755f-a127-e8cd208e5286_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019edb4f-00a7-7c1b-a710-60d330ba5522" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019edb4f-00a7-755f-a127-e8cd208e5286" xlink:to="loc_srt_RangeMember_019edb4f-00a7-7c1b-a710-60d330ba5522" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019edb4f-00a7-7f88-b9a9-0a8d5ea19dd1" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019edb4f-00a7-7c1b-a710-60d330ba5522" xlink:to="loc_srt_MinimumMember_019edb4f-00a7-7f88-b9a9-0a8d5ea19dd1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019edb4f-00a7-7805-9162-b8c50c83cd26" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019edb4f-00a7-7c1b-a710-60d330ba5522" xlink:to="loc_srt_MaximumMember_019edb4f-00a7-7805-9162-b8c50c83cd26" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-77ab-8ea0-bfb2d741bd40" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_maps_AccountingPoliciesTable_019edb4f-00a7-7ed2-8394-cf371a556ab4" xlink:to="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-77ab-8ea0-bfb2d741bd40" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-77ab-8ea0-bfb2d741bd40_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-77ab-8ea0-bfb2d741bd40" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-77ab-8ea0-bfb2d741bd40_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7e44-a137-d7ed9b98a92b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-77ab-8ea0-bfb2d741bd40" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7e44-a137-d7ed9b98a92b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_019edb4f-00a7-7244-8c1d-90ba3c2bfbe4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7e44-a137-d7ed9b98a92b" xlink:to="loc_us-gaap_PerformanceSharesMember_019edb4f-00a7-7244-8c1d-90ba3c2bfbe4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashEquivalentsAtCarryingValue_019f13c6-27bc-7fce-88d7-0d991ca9f084" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_CashEquivalentsAtCarryingValue_019f13c6-27bc-7fce-88d7-0d991ca9f084" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_019edb4f-00a7-7d88-807d-fc7e3c10b366" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_019edb4f-00a7-7d88-807d-fc7e3c10b366" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_019edb4f-00a7-7166-8c49-514b41ad4d32" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_019edb4f-00a7-7166-8c49-514b41ad4d32" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount_019f13c8-90b8-7821-b4e7-f3e54a31fcbd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount_019f13c8-90b8-7821-b4e7-f3e54a31fcbd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_019edb4f-00a7-79c4-b6d3-88c7c77ec982" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_019edb4f-00a7-79c4-b6d3-88c7c77ec982" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TangibleAssetImpairmentCharges_019f13c9-4fe4-7f54-b134-d6740bc256ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TangibleAssetImpairmentCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_TangibleAssetImpairmentCharges_019f13c9-4fe4-7f54-b134-d6740bc256ed" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_019f13ca-5900-7607-99cb-dd18e08be0d8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_019f13ca-5900-7607-99cb-dd18e08be0d8" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentForAmortization_019edb4f-00a7-7b46-8b22-97188af392f0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdjustmentForAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_AdjustmentForAmortization_019edb4f-00a7-7b46-8b22-97188af392f0" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_019edb4f-00a7-7867-ab7e-8c9b2b1eb07c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_019edb4f-00a7-7867-ab7e-8c9b2b1eb07c" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill_019f13cb-ce32-71c2-a3fd-62651f84eac0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill_019f13cb-ce32-71c2-a3fd-62651f84eac0" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseImpairmentLoss_019edb4f-00a7-7b90-b2f3-870245f13baf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OperatingLeaseImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_OperatingLeaseImpairmentLoss_019edb4f-00a7-7b90-b2f3-870245f13baf" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_019edb4f-00a7-76e7-a929-e2971b61c4f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LeaseCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_LeaseCost_019edb4f-00a7-76e7-a929-e2971b61c4f9" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_OperatingLeasesContraRentExpense_019edb4f-00a7-785a-8fd0-747389470d0c" xlink:href="maps-20260630.xsd#maps_OperatingLeasesContraRentExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_maps_OperatingLeasesContraRentExpense_019edb4f-00a7-785a-8fd0-747389470d0c" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_OriginationWarrants_019edb4f-00a7-7bb3-9ec0-25e0f151816d" xlink:href="maps-20260630.xsd#maps_OriginationWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_maps_OriginationWarrants_019edb4f-00a7-7bb3-9ec0-25e0f151816d" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_RightToPurchaseShares_019edb4f-00a7-7335-8625-a25d3146627a" xlink:href="maps-20260630.xsd#maps_RightToPurchaseShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_maps_RightToPurchaseShares_019edb4f-00a7-7335-8625-a25d3146627a" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019edb4f-00a7-7411-b190-24bf7027a69d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019edb4f-00a7-7411-b190-24bf7027a69d" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_TenderOfferOrExchangeTriggerForCashSettlementMinimumEquityHolderParticipation_019edb4f-00a7-7715-94c7-39bf9f86b9a8" xlink:href="maps-20260630.xsd#maps_TenderOfferOrExchangeTriggerForCashSettlementMinimumEquityHolderParticipation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_maps_TenderOfferOrExchangeTriggerForCashSettlementMinimumEquityHolderParticipation_019edb4f-00a7-7715-94c7-39bf9f86b9a8" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_TaxReceivableAgreementPaymentToContinuingMembersAsPercentOfAmountOfTaxBenefit_019edb4f-00a7-7192-92bc-c8b7e9008bdd" xlink:href="maps-20260630.xsd#maps_TaxReceivableAgreementPaymentToContinuingMembersAsPercentOfAmountOfTaxBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_maps_TaxReceivableAgreementPaymentToContinuingMembersAsPercentOfAmountOfTaxBenefit_019edb4f-00a7-7192-92bc-c8b7e9008bdd" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_TaxReceivableAgreementLiabilitiesAsPercentOfExpectedBenefit_019edb4f-00a7-76ed-b56e-23e1b2e24fcb" xlink:href="maps-20260630.xsd#maps_TaxReceivableAgreementLiabilitiesAsPercentOfExpectedBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_maps_TaxReceivableAgreementLiabilitiesAsPercentOfExpectedBenefit_019edb4f-00a7-76ed-b56e-23e1b2e24fcb" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_TaxReceivableAgreementPercentRecordedInAdditionalPaidInCapital_019edb4f-00a7-7641-b722-40e6c3e354cc" xlink:href="maps-20260630.xsd#maps_TaxReceivableAgreementPercentRecordedInAdditionalPaidInCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_maps_TaxReceivableAgreementPercentRecordedInAdditionalPaidInCapital_019edb4f-00a7-7641-b722-40e6c3e354cc" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_TaxReceivableAgreementLiability_019edb4f-00a7-77d9-98ff-fee2176a1312" xlink:href="maps-20260630.xsd#maps_TaxReceivableAgreementLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_maps_TaxReceivableAgreementLiability_019edb4f-00a7-77d9-98ff-fee2176a1312" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ChangeInTaxReceivableAgreementLiability_019edb4f-00a7-768d-be64-65b10f8c75d9" xlink:href="maps-20260630.xsd#maps_ChangeInTaxReceivableAgreementLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_maps_ChangeInTaxReceivableAgreementLiability_019edb4f-00a7-768d-be64-65b10f8c75d9" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_019edb4f-00a7-7849-8d28-aa2495b2a336" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_CostOfRevenue_019edb4f-00a7-7849-8d28-aa2495b2a336" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdvertisingExpense_019edb4f-00a7-7c04-8fb3-00397805036e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AdvertisingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_AdvertisingExpense_019edb4f-00a7-7c04-8fb3-00397805036e" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetAward_019edb4f-00a7-7d7e-8d99-6744559eb420" xlink:href="maps-20260630.xsd#maps_ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetAward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_maps_ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetAward_019edb4f-00a7-7d7e-8d99-6744559eb420" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_019edb4f-00a7-74be-b2aa-2f0ba6c11d53" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_019edb4f-00a7-74be-b2aa-2f0ba6c11d53" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1_019edb4f-00a7-7c17-9c30-59feb386914f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1_019edb4f-00a7-7c17-9c30-59feb386914f" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanCostRecognized_019edb4f-00a7-77dc-a61c-afb082196f1c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedContributionPlanCostRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_DefinedContributionPlanCostRecognized_019edb4f-00a7-77dc-a61c-afb082196f1c" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_019fb382-dc39-716e-997c-33057e3494cc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DeferredTaxAssetsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_019fb382-dc39-716e-997c-33057e3494cc" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_TaxReceivableAgreementIncomeTaxSavings_019f13d3-c5d0-7676-889a-f54c397c3607" xlink:href="maps-20260630.xsd#maps_TaxReceivableAgreementIncomeTaxSavings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_maps_TaxReceivableAgreementIncomeTaxSavings_019f13d3-c5d0-7676-889a-f54c397c3607" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_TaxReceivableAgreementPaymentToContinuingMembersPercentOfAmountOfTaxBenefit_019f13d3-c5d0-705c-a74a-5b00c01cdadd" xlink:href="maps-20260630.xsd#maps_TaxReceivableAgreementPaymentToContinuingMembersPercentOfAmountOfTaxBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_maps_TaxReceivableAgreementPaymentToContinuingMembersPercentOfAmountOfTaxBenefit_019f13d3-c5d0-705c-a74a-5b00c01cdadd" xlink:type="arc" order="30"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_TaxReceivableAgreementPaymentToContinuingMembers_019f13d3-c5d0-7e16-807a-e57b1f0cbab6" xlink:href="maps-20260630.xsd#maps_TaxReceivableAgreementPaymentToContinuingMembers"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_AccountingPoliciesLineItems_019edb4f-00a7-7133-8704-4afecd505d99" xlink:to="loc_maps_TaxReceivableAgreementPaymentToContinuingMembers_019f13d3-c5d0-7e16-807a-e57b1f0cbab6" xlink:type="arc" order="31"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_TaxReceivableAgreementLiability_019edb4f-00a7-7313-9fa4-716adabf5ccb" xlink:href="maps-20260630.xsd#maps_TaxReceivableAgreementLiability"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/RevenuefromContractswithCustomersScheduleofDisaggregatedNetRevenuesDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#RevenuefromContractswithCustomersScheduleofDisaggregatedNetRevenuesDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/RevenuefromContractswithCustomersScheduleofDisaggregatedNetRevenuesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_019edb4f-00a7-7c41-aa72-21e2d806288e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_019edb4f-00a7-740c-8e06-b641b68ae0ab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019edb4f-00a7-7c41-aa72-21e2d806288e" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_019edb4f-00a7-740c-8e06-b641b68ae0ab" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019edb4f-00a7-79a1-8dde-5613db96666f" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019edb4f-00a7-740c-8e06-b641b68ae0ab" xlink:to="loc_srt_ProductOrServiceAxis_019edb4f-00a7-79a1-8dde-5613db96666f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019edb4f-00a7-79a1-8dde-5613db96666f_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_019edb4f-00a7-79a1-8dde-5613db96666f" xlink:to="loc_srt_ProductsAndServicesDomain_019edb4f-00a7-79a1-8dde-5613db96666f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019edb4f-00a7-7621-84dd-af08ab5c439a" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_019edb4f-00a7-79a1-8dde-5613db96666f" xlink:to="loc_srt_ProductsAndServicesDomain_019edb4f-00a7-7621-84dd-af08ab5c439a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_WeedmapsForBusinessAndOtherSaaSSolutionsMember_019edb4f-00a7-7e7c-9a28-a58d95731afb" xlink:href="maps-20260630.xsd#maps_WeedmapsForBusinessAndOtherSaaSSolutionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019edb4f-00a7-7621-84dd-af08ab5c439a" xlink:to="loc_maps_WeedmapsForBusinessAndOtherSaaSSolutionsMember_019edb4f-00a7-7e7c-9a28-a58d95731afb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_FeaturedListingMember_019edb4f-00a7-7c61-a3bd-675c8509018f" xlink:href="maps-20260630.xsd#maps_FeaturedListingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019edb4f-00a7-7621-84dd-af08ab5c439a" xlink:to="loc_maps_FeaturedListingMember_019edb4f-00a7-7c61-a3bd-675c8509018f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ServiceMember_019edb4f-00a7-75a0-bb90-1160a5563a95" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019edb4f-00a7-7621-84dd-af08ab5c439a" xlink:to="loc_us-gaap_ServiceMember_019edb4f-00a7-75a0-bb90-1160a5563a95" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductAndServiceOtherMember_019edb4f-00a7-7234-bb02-f7f43ce8365f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProductAndServiceOtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019edb4f-00a7-7621-84dd-af08ab5c439a" xlink:to="loc_us-gaap_ProductAndServiceOtherMember_019edb4f-00a7-7234-bb02-f7f43ce8365f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_SalesDiscountMember_019edb4f-00a7-70fe-a619-d40881276c1b" xlink:href="maps-20260630.xsd#maps_SalesDiscountMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019edb4f-00a7-7621-84dd-af08ab5c439a" xlink:to="loc_maps_SalesDiscountMember_019edb4f-00a7-70fe-a619-d40881276c1b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019edb4f-00a7-7b40-8f1c-6225f5efc60c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019edb4f-00a7-7c41-aa72-21e2d806288e" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019edb4f-00a7-7b40-8f1c-6225f5efc60c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_019edb4f-00a7-755b-b506-46034581ea7e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019edb4f-00a7-7c41-aa72-21e2d806288e" xlink:to="loc_us-gaap_CostOfRevenue_019edb4f-00a7-755b-b506-46034581ea7e" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/RevenuefromContractswithCustomersAdditionalInformationDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#RevenuefromContractswithCustomersAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/RevenuefromContractswithCustomersAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_019edb4f-00a7-79e0-92ba-c216f81dfeb3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_019edb4f-00a7-7362-bf43-449e8135d489" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019edb4f-00a7-79e0-92ba-c216f81dfeb3" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_019edb4f-00a7-7362-bf43-449e8135d489" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019edb4f-00a7-7c4e-931f-6483ae5b5c21" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019edb4f-00a7-7362-bf43-449e8135d489" xlink:to="loc_srt_StatementGeographicalAxis_019edb4f-00a7-7c4e-931f-6483ae5b5c21" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019edb4f-00a7-7c4e-931f-6483ae5b5c21_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019edb4f-00a7-7c4e-931f-6483ae5b5c21" xlink:to="loc_srt_SegmentGeographicalDomain_019edb4f-00a7-7c4e-931f-6483ae5b5c21_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019edb4f-00a7-77fb-a430-d3c54eebdcf5" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019edb4f-00a7-7c4e-931f-6483ae5b5c21" xlink:to="loc_srt_SegmentGeographicalDomain_019edb4f-00a7-77fb-a430-d3c54eebdcf5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_CA_019edb4f-00a7-7a49-b76c-550f20c7be87" xlink:href="https://xbrl.sec.gov/stpr/2026/stpr-2026.xsd#stpr_CA"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019edb4f-00a7-77fb-a430-d3c54eebdcf5" xlink:to="loc_stpr_CA_019edb4f-00a7-7a49-b76c-550f20c7be87" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019edb4f-00a7-76ac-8af5-be318e9e6839" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019edb4f-00a7-7362-bf43-449e8135d489" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019edb4f-00a7-76ac-8af5-be318e9e6839" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019edb4f-00a7-76ac-8af5-be318e9e6839_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019edb4f-00a7-76ac-8af5-be318e9e6839" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019edb4f-00a7-76ac-8af5-be318e9e6839_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019edb4f-00a7-7f75-b76f-9e3f7758761c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019edb4f-00a7-76ac-8af5-be318e9e6839" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019edb4f-00a7-7f75-b76f-9e3f7758761c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesRevenueNetMember_019edb4f-00a7-7b4b-bd02-871079092572" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SalesRevenueNetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019edb4f-00a7-7f75-b76f-9e3f7758761c" xlink:to="loc_us-gaap_SalesRevenueNetMember_019edb4f-00a7-7b4b-bd02-871079092572" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019edb4f-00a7-7a66-aa26-5888228ddaa4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019edb4f-00a7-7362-bf43-449e8135d489" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019edb4f-00a7-7a66-aa26-5888228ddaa4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019edb4f-00a7-7a66-aa26-5888228ddaa4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019edb4f-00a7-7a66-aa26-5888228ddaa4" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019edb4f-00a7-7a66-aa26-5888228ddaa4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019edb4f-00a7-7bfb-8e04-59ca54f6b77b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019edb4f-00a7-7a66-aa26-5888228ddaa4" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019edb4f-00a7-7bfb-8e04-59ca54f6b77b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeographicConcentrationRiskMember_019edb4f-00a7-7350-9eb1-8434a5b3a101" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GeographicConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019edb4f-00a7-7bfb-8e04-59ca54f6b77b" xlink:to="loc_us-gaap_GeographicConcentrationRiskMember_019edb4f-00a7-7350-9eb1-8434a5b3a101" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019edb4f-00a7-72ba-9591-20662bfe7aef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019edb4f-00a7-79e0-92ba-c216f81dfeb3" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_019edb4f-00a7-72ba-9591-20662bfe7aef" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ContractWithCustomerLiabilityDecreaseFromDeferralOfRevenue_019f094d-f57c-75c9-8189-c4bb5ac78bc9" xlink:href="maps-20260630.xsd#maps_ContractWithCustomerLiabilityDecreaseFromDeferralOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019edb4f-00a7-79e0-92ba-c216f81dfeb3" xlink:to="loc_maps_ContractWithCustomerLiabilityDecreaseFromDeferralOfRevenue_019f094d-f57c-75c9-8189-c4bb5ac78bc9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ContractWithCustomerLiabilityIncreaseFromDeferralOfRevenue_019f094d-f57c-7344-a264-7a2d1bff7278" xlink:href="maps-20260630.xsd#maps_ContractWithCustomerLiabilityIncreaseFromDeferralOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019edb4f-00a7-79e0-92ba-c216f81dfeb3" xlink:to="loc_maps_ContractWithCustomerLiabilityIncreaseFromDeferralOfRevenue_019f094d-f57c-7344-a264-7a2d1bff7278" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019edb4f-00a7-7acb-ba17-5f5e2307f1bb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019edb4f-00a7-79e0-92ba-c216f81dfeb3" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019edb4f-00a7-7acb-ba17-5f5e2307f1bb" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/SegmentReportingDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#SegmentReportingDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/SegmentReportingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_019edb4f-00a7-7393-99b9-e78a2451d9ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019edb4f-00a7-70bf-b27a-12069c5369cc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019edb4f-00a7-7393-99b9-e78a2451d9ae" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019edb4f-00a7-70bf-b27a-12069c5369cc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019edb4f-00a7-73bc-a75a-8fd780f2f9aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019edb4f-00a7-70bf-b27a-12069c5369cc" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019edb4f-00a7-73bc-a75a-8fd780f2f9aa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019edb4f-00a7-73bc-a75a-8fd780f2f9aa_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019edb4f-00a7-73bc-a75a-8fd780f2f9aa" xlink:to="loc_us-gaap_SegmentDomain_019edb4f-00a7-73bc-a75a-8fd780f2f9aa_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019edb4f-00a7-7621-9de4-380858b145ab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019edb4f-00a7-73bc-a75a-8fd780f2f9aa" xlink:to="loc_us-gaap_SegmentDomain_019edb4f-00a7-7621-9de4-380858b145ab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ReportableSegmentMember_019edb4f-00a7-7973-8e9e-02f292cb6066" xlink:href="maps-20260630.xsd#maps_ReportableSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019edb4f-00a7-7621-9de4-380858b145ab" xlink:to="loc_maps_ReportableSegmentMember_019edb4f-00a7-7973-8e9e-02f292cb6066" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019edb4f-00a7-735b-a748-945e7239730d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019edb4f-00a7-7393-99b9-e78a2451d9ae" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019edb4f-00a7-735b-a748-945e7239730d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_019edb4f-00a7-7b2f-a468-38db01560ec7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CostOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019edb4f-00a7-7393-99b9-e78a2451d9ae" xlink:to="loc_us-gaap_CostOfRevenue_019edb4f-00a7-7b2f-a468-38db01560ec7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketingExpense_019edb4f-00a7-767c-abcc-64733b9558ae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MarketingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019edb4f-00a7-7393-99b9-e78a2451d9ae" xlink:to="loc_us-gaap_MarketingExpense_019edb4f-00a7-767c-abcc-64733b9558ae" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_019edb4f-00a7-7638-97eb-d3dcd868941b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019edb4f-00a7-7393-99b9-e78a2451d9ae" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_019edb4f-00a7-7638-97eb-d3dcd868941b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_019edb4f-00a7-7417-91be-2c2db867a0e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019edb4f-00a7-7393-99b9-e78a2451d9ae" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_019edb4f-00a7-7417-91be-2c2db867a0e4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_019edb4f-00a7-7ec2-bc75-7f0f62971723" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019edb4f-00a7-7393-99b9-e78a2451d9ae" xlink:to="loc_us-gaap_DepreciationAndAmortization_019edb4f-00a7-7ec2-bc75-7f0f62971723" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingOtherItemAmount_019edb4f-00a7-7486-9402-3e3b476cf7b1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SegmentReportingOtherItemAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019edb4f-00a7-7393-99b9-e78a2451d9ae" xlink:to="loc_us-gaap_SegmentReportingOtherItemAmount_019edb4f-00a7-7486-9402-3e3b476cf7b1" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019edb4f-00a7-7861-a08c-64ffe295b0f5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019edb4f-00a7-7393-99b9-e78a2451d9ae" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019edb4f-00a7-7861-a08c-64ffe295b0f5" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019edb4f-00a7-7802-8e5e-d98e3b78bc41" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019edb4f-00a7-7393-99b9-e78a2451d9ae" xlink:to="loc_us-gaap_ProfitLoss_019edb4f-00a7-7802-8e5e-d98e3b78bc41" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/CommitmentsandContingenciesDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#CommitmentsandContingenciesDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/CommitmentsandContingenciesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_019edb4f-00a7-7b9e-a609-6a539e261541" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019edb4f-00a7-79cb-abf6-65873de2f813" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_019edb4f-00a7-7b9e-a609-6a539e261541" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019edb4f-00a7-79cb-abf6-65873de2f813" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019f13a0-cc53-78fc-9757-5c4637458836" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019edb4f-00a7-79cb-abf6-65873de2f813" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019f13a0-cc53-78fc-9757-5c4637458836" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_019f13a0-cc53-78fc-9757-5c4637458836_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019f13a0-cc53-78fc-9757-5c4637458836" xlink:to="loc_us-gaap_LossContingencyNatureDomain_019f13a0-cc53-78fc-9757-5c4637458836_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_019f13a0-cc53-7bbc-8500-14b782721861" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019f13a0-cc53-78fc-9757-5c4637458836" xlink:to="loc_us-gaap_LossContingencyNatureDomain_019f13a0-cc53-7bbc-8500-14b782721861" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_SettlementObligationMember_019f13a0-cc53-7b9e-ba4a-d2a6db0dc5d8" xlink:href="maps-20260630.xsd#maps_SettlementObligationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingencyNatureDomain_019f13a0-cc53-7bbc-8500-14b782721861" xlink:to="loc_maps_SettlementObligationMember_019f13a0-cc53-7b9e-ba4a-d2a6db0dc5d8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019edb4f-00a7-7d7e-81f5-4da51aee7457" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019edb4f-00a7-79cb-abf6-65873de2f813" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019edb4f-00a7-7d7e-81f5-4da51aee7457" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019edb4f-00a7-7d7e-81f5-4da51aee7457_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019edb4f-00a7-7d7e-81f5-4da51aee7457" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019edb4f-00a7-7d7e-81f5-4da51aee7457_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019edb4f-00a7-79fb-b945-0e45f07346ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019edb4f-00a7-7d7e-81f5-4da51aee7457" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019edb4f-00a7-79fb-b945-0e45f07346ea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_SoftwareLicenseAgreementsMember_019edb4f-00a7-767b-a17f-018e0787c445" xlink:href="maps-20260630.xsd#maps_SoftwareLicenseAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019edb4f-00a7-79fb-b945-0e45f07346ea" xlink:to="loc_maps_SoftwareLicenseAgreementsMember_019edb4f-00a7-767b-a17f-018e0787c445" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019fca78-fb1e-7fd8-b6fe-b739488bb024" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019edb4f-00a7-79cb-abf6-65873de2f813" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019fca78-fb1e-7fd8-b6fe-b739488bb024" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019fca78-fb1e-7fd8-b6fe-b739488bb024_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019fca78-fb1e-7fd8-b6fe-b739488bb024" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019fca78-fb1e-7fd8-b6fe-b739488bb024_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019fca78-fb1e-7101-89c0-3fc528720abf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019fca78-fb1e-7fd8-b6fe-b739488bb024" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019fca78-fb1e-7101-89c0-3fc528720abf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019fca78-fb1e-7a9a-8366-3fce3cd52029" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019fca78-fb1e-7101-89c0-3fc528720abf" xlink:to="loc_us-gaap_SubsequentEventMember_019fca78-fb1e-7a9a-8366-3fce3cd52029" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyDamagesAwardedValue_019fc5d5-ed10-75c5-8997-386218c36c10" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyDamagesAwardedValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_019edb4f-00a7-7b9e-a609-6a539e261541" xlink:to="loc_us-gaap_LossContingencyDamagesAwardedValue_019fc5d5-ed10-75c5-8997-386218c36c10" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyAccrualAtCarryingValue_019f13a0-cc53-7a7d-8d40-5c7b2f153d35" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyAccrualAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_019edb4f-00a7-7b9e-a609-6a539e261541" xlink:to="loc_us-gaap_LossContingencyAccrualAtCarryingValue_019f13a0-cc53-7a7d-8d40-5c7b2f153d35" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_LossContingencyAccrualToBePaidByInsurance_019fca73-93fe-75cb-a489-51ec8f05d5f9" xlink:href="maps-20260630.xsd#maps_LossContingencyAccrualToBePaidByInsurance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_019edb4f-00a7-7b9e-a609-6a539e261541" xlink:to="loc_maps_LossContingencyAccrualToBePaidByInsurance_019fca73-93fe-75cb-a489-51ec8f05d5f9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationSettlementAmountAwardedToOtherParty_019fca78-fb1e-76c0-8e1e-0bd2bffae147" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LitigationSettlementAmountAwardedToOtherParty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_019edb4f-00a7-7b9e-a609-6a539e261541" xlink:to="loc_us-gaap_LitigationSettlementAmountAwardedToOtherParty_019fca78-fb1e-76c0-8e1e-0bd2bffae147" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear_019edb4f-00a7-75ee-a117-54ea69b02eec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_019edb4f-00a7-7b9e-a609-6a539e261541" xlink:to="loc_us-gaap_PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear_019edb4f-00a7-75ee-a117-54ea69b02eec" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligation_019edb4f-00a7-7153-9501-be55ccefd355" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PurchaseObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_019edb4f-00a7-7b9e-a609-6a539e261541" xlink:to="loc_us-gaap_PurchaseObligation_019edb4f-00a7-7153-9501-be55ccefd355" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ReductionToPurchaseObligation_019fa2db-7a28-7b28-9669-d6f5e59e06d8" xlink:href="maps-20260630.xsd#maps_ReductionToPurchaseObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_019edb4f-00a7-7b9e-a609-6a539e261541" xlink:to="loc_maps_ReductionToPurchaseObligation_019fa2db-7a28-7b28-9669-d6f5e59e06d8" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/FairValueMeasurementsWarrantsDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#FairValueMeasurementsWarrantsDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/FairValueMeasurementsWarrantsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019edb4f-00a7-7111-902f-5e124dcdaf0b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019edb4f-00a7-7c2f-a809-05abad936ad7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019edb4f-00a7-7111-902f-5e124dcdaf0b" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019edb4f-00a7-7c2f-a809-05abad936ad7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019edb4f-00a7-7c3c-9a9b-964f629e9aae" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019edb4f-00a7-7c2f-a809-05abad936ad7" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019edb4f-00a7-7c3c-9a9b-964f629e9aae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019edb4f-00a7-7c3c-9a9b-964f629e9aae_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019edb4f-00a7-7c3c-9a9b-964f629e9aae" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019edb4f-00a7-7c3c-9a9b-964f629e9aae_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019edb4f-00a7-7c27-82fe-5feaa92f6e30" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019edb4f-00a7-7c3c-9a9b-964f629e9aae" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019edb4f-00a7-7c27-82fe-5feaa92f6e30" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019edb4f-00a7-7191-beb5-e332d84013c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019edb4f-00a7-7c27-82fe-5feaa92f6e30" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019edb4f-00a7-7191-beb5-e332d84013c7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019edb4f-00a7-7cb9-94f1-679d3939f2da" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019edb4f-00a7-7c27-82fe-5feaa92f6e30" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019edb4f-00a7-7cb9-94f1-679d3939f2da" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_019f133f-69fa-79a4-ad1c-3dda25df16ee" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019edb4f-00a7-7c2f-a809-05abad936ad7" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_019f133f-69fa-79a4-ad1c-3dda25df16ee" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019f133f-69fa-79a4-ad1c-3dda25df16ee_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_019f133f-69fa-79a4-ad1c-3dda25df16ee" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019f133f-69fa-79a4-ad1c-3dda25df16ee_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019f133f-69fa-7c81-b9f1-978405173f68" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_019f133f-69fa-79a4-ad1c-3dda25df16ee" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019f133f-69fa-7c81-b9f1-978405173f68" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_019f133f-69fa-78a9-b1e6-d69cf0bbf018" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019f133f-69fa-7c81-b9f1-978405173f68" xlink:to="loc_us-gaap_MoneyMarketFundsMember_019f133f-69fa-78a9-b1e6-d69cf0bbf018" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USTreasuryBillSecuritiesMember_019f133f-69fa-7ff9-95b1-8cee1ff01d3e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_USTreasuryBillSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019f133f-69fa-7c81-b9f1-978405173f68" xlink:to="loc_us-gaap_USTreasuryBillSecuritiesMember_019f133f-69fa-7ff9-95b1-8cee1ff01d3e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-7fa7-966e-3e7637376b91" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019edb4f-00a7-7c2f-a809-05abad936ad7" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-7fa7-966e-3e7637376b91" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7fa7-966e-3e7637376b91_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-7fa7-966e-3e7637376b91" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7fa7-966e-3e7637376b91_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7e6f-a533-a25b013949ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-7fa7-966e-3e7637376b91" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7e6f-a533-a25b013949ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_PublicWarrantsMember_019edb4f-00a7-77a5-b458-60c328107466" xlink:href="maps-20260630.xsd#maps_PublicWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7e6f-a533-a25b013949ef" xlink:to="loc_maps_PublicWarrantsMember_019edb4f-00a7-77a5-b458-60c328107466" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_PrivatePlacementWarrantMember_019edb4f-00a7-77f7-b896-34da91afa34a" xlink:href="maps-20260630.xsd#maps_PrivatePlacementWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7e6f-a533-a25b013949ef" xlink:to="loc_maps_PrivatePlacementWarrantMember_019edb4f-00a7-77f7-b896-34da91afa34a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019f132b-d939-79fc-93b7-f8cc7d80bb15" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019edb4f-00a7-7111-902f-5e124dcdaf0b" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019f132b-d939-79fc-93b7-f8cc7d80bb15" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstanding_019edb4f-00a7-7616-84b3-7cc43512be26" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantsAndRightsOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019edb4f-00a7-7111-902f-5e124dcdaf0b" xlink:to="loc_us-gaap_WarrantsAndRightsOutstanding_019edb4f-00a7-7616-84b3-7cc43512be26" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ChangesInFairValueOfWarrantLiabilitiesRollForward_019edb4f-00a7-7bdc-a465-de8776be5d5d" xlink:href="maps-20260630.xsd#maps_ChangesInFairValueOfWarrantLiabilitiesRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019edb4f-00a7-7111-902f-5e124dcdaf0b" xlink:to="loc_maps_ChangesInFairValueOfWarrantLiabilitiesRollForward_019edb4f-00a7-7bdc-a465-de8776be5d5d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstanding_019edb4f-00a7-7873-a5a6-8ef8ce1ffb72" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantsAndRightsOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_019edb4f-00a7-7c1b-b8d7-126b0c99582d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_ChangesInFairValueOfWarrantLiabilitiesRollForward_019edb4f-00a7-7bdc-a465-de8776be5d5d" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_019edb4f-00a7-7c1b-b8d7-126b0c99582d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstanding_019edb4f-00a7-7e7c-8b01-c0d8dde3806b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantsAndRightsOutstanding"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/FairValueMeasurementsNarrativeDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#FairValueMeasurementsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/FairValueMeasurementsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019edb4f-00a7-730f-a119-ef02bbe42e20" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019edb4f-00a7-737c-b791-9f0883bc494b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019edb4f-00a7-730f-a119-ef02bbe42e20" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019edb4f-00a7-737c-b791-9f0883bc494b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-7ef7-96a2-e27f1c00af14" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019edb4f-00a7-737c-b791-9f0883bc494b" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-7ef7-96a2-e27f1c00af14" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7ef7-96a2-e27f1c00af14_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-7ef7-96a2-e27f1c00af14" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7ef7-96a2-e27f1c00af14_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7577-bb9f-7216f22bb123" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-7ef7-96a2-e27f1c00af14" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7577-bb9f-7216f22bb123" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_PublicWarrantsMember_019edb4f-00a7-7a0b-be14-601a46ec19d2" xlink:href="maps-20260630.xsd#maps_PublicWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7577-bb9f-7216f22bb123" xlink:to="loc_maps_PublicWarrantsMember_019edb4f-00a7-7a0b-be14-601a46ec19d2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_PrivatePlacementWarrantMember_019edb4f-00a7-77a9-86d0-d4a8724a6136" xlink:href="maps-20260630.xsd#maps_PrivatePlacementWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7577-bb9f-7216f22bb123" xlink:to="loc_maps_PrivatePlacementWarrantMember_019edb4f-00a7-77a9-86d0-d4a8724a6136" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstanding_019edb4f-00a7-7bad-8452-e55d8079d754" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantsAndRightsOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019edb4f-00a7-730f-a119-ef02bbe42e20" xlink:to="loc_us-gaap_WarrantsAndRightsOutstanding_019edb4f-00a7-7bad-8452-e55d8079d754" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/FairValueMeasurementsQuantitativeInformationDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#FairValueMeasurementsQuantitativeInformationDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/FairValueMeasurementsQuantitativeInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019edb4f-00a7-7bd4-88aa-e9e6e2f6361d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019edb4f-00a7-7338-9d47-a75b95f0982c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019edb4f-00a7-7bd4-88aa-e9e6e2f6361d" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019edb4f-00a7-7338-9d47-a75b95f0982c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019edb4f-00a7-7b18-b5dc-d8c89869c329" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019edb4f-00a7-7338-9d47-a75b95f0982c" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019edb4f-00a7-7b18-b5dc-d8c89869c329" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019edb4f-00a7-7b18-b5dc-d8c89869c329_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019edb4f-00a7-7b18-b5dc-d8c89869c329" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019edb4f-00a7-7b18-b5dc-d8c89869c329_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019edb4f-00a7-742d-b21a-c3e325a33be6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019edb4f-00a7-7b18-b5dc-d8c89869c329" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019edb4f-00a7-742d-b21a-c3e325a33be6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019edb4f-00a7-7de3-92de-d6811bf838ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019edb4f-00a7-742d-b21a-c3e325a33be6" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019edb4f-00a7-7de3-92de-d6811bf838ea" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-798c-a392-f327ef7fc933" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019edb4f-00a7-7338-9d47-a75b95f0982c" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-798c-a392-f327ef7fc933" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-798c-a392-f327ef7fc933_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-798c-a392-f327ef7fc933" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-798c-a392-f327ef7fc933_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7ecd-bf17-25b622739db2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-798c-a392-f327ef7fc933" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7ecd-bf17-25b622739db2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_PrivatePlacementWarrantMember_019edb4f-00a7-71d5-b3c1-934c6ab4a94a" xlink:href="maps-20260630.xsd#maps_PrivatePlacementWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7ecd-bf17-25b622739db2" xlink:to="loc_maps_PrivatePlacementWarrantMember_019edb4f-00a7-71d5-b3c1-934c6ab4a94a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeAxis_019edb4f-00a7-739a-b468-9598e97633f5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_019edb4f-00a7-7338-9d47-a75b95f0982c" xlink:to="loc_us-gaap_MeasurementInputTypeAxis_019edb4f-00a7-739a-b468-9598e97633f5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_019edb4f-00a7-739a-b468-9598e97633f5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_019edb4f-00a7-739a-b468-9598e97633f5" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_019edb4f-00a7-739a-b468-9598e97633f5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_019edb4f-00a7-7710-a492-0f2fee9de6a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_019edb4f-00a7-739a-b468-9598e97633f5" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_019edb4f-00a7-7710-a492-0f2fee9de6a6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputExercisePriceMember_019edb4f-00a7-71a5-8986-54ca5c1fc0c8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputExercisePriceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019edb4f-00a7-7710-a492-0f2fee9de6a6" xlink:to="loc_us-gaap_MeasurementInputExercisePriceMember_019edb4f-00a7-71a5-8986-54ca5c1fc0c8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputSharePriceMember_019edb4f-00a7-79b5-ab14-5cf08ad5f5fd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputSharePriceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019edb4f-00a7-7710-a492-0f2fee9de6a6" xlink:to="loc_us-gaap_MeasurementInputSharePriceMember_019edb4f-00a7-79b5-ab14-5cf08ad5f5fd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputPriceVolatilityMember_019edb4f-00a7-7d8b-87b2-225ba4f5fc64" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputPriceVolatilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019edb4f-00a7-7710-a492-0f2fee9de6a6" xlink:to="loc_us-gaap_MeasurementInputPriceVolatilityMember_019edb4f-00a7-7d8b-87b2-225ba4f5fc64" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputExpectedTermMember_019edb4f-00a7-7821-b16a-df3c990618ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputExpectedTermMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019edb4f-00a7-7710-a492-0f2fee9de6a6" xlink:to="loc_us-gaap_MeasurementInputExpectedTermMember_019edb4f-00a7-7821-b16a-df3c990618ed" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_019edb4f-00a7-7544-8f65-c3bf4f1cca62" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MeasurementInputRiskFreeInterestRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_019edb4f-00a7-7710-a492-0f2fee9de6a6" xlink:to="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_019edb4f-00a7-7544-8f65-c3bf4f1cca62" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_019edb4f-00a7-7197-bbbc-69f22a0ee0cb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019edb4f-00a7-7bd4-88aa-e9e6e2f6361d" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_019edb4f-00a7-7197-bbbc-69f22a0ee0cb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingTerm_019edb4f-00a7-78f5-9acc-c8995fab166c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WarrantsAndRightsOutstandingTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_019edb4f-00a7-7bd4-88aa-e9e6e2f6361d" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingTerm_019edb4f-00a7-78f5-9acc-c8995fab166c" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/GoodwillandIntangibleAssetsAdditionalInformationDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#GoodwillandIntangibleAssetsAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/GoodwillandIntangibleAssetsAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019f134f-692f-76fd-8f72-c064fd5ad106" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_019f134f-692f-74ce-be92-9ff06e735de2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019f134f-692f-76fd-8f72-c064fd5ad106" xlink:to="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_019f134f-692f-74ce-be92-9ff06e735de2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019f134f-692f-7b2f-8c8f-81f87987aa5f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_019f134f-692f-74ce-be92-9ff06e735de2" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019f134f-692f-7b2f-8c8f-81f87987aa5f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019f134f-692f-7b2f-8c8f-81f87987aa5f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019f134f-692f-7b2f-8c8f-81f87987aa5f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019f134f-692f-7b2f-8c8f-81f87987aa5f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019f134f-692f-7905-a04a-d34b64630502" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019f134f-692f-7b2f-8c8f-81f87987aa5f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019f134f-692f-7905-a04a-d34b64630502" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_DomainNameMember_019f134f-692f-79a7-b07c-03b8fc64cf2c" xlink:href="maps-20260630.xsd#maps_DomainNameMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019f134f-692f-7905-a04a-d34b64630502" xlink:to="loc_maps_DomainNameMember_019f134f-692f-79a7-b07c-03b8fc64cf2c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019edb4f-00a7-7f35-a21a-7109eb8be9ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019f134f-692f-76fd-8f72-c064fd5ad106" xlink:to="loc_us-gaap_Goodwill_019edb4f-00a7-7f35-a21a-7109eb8be9ec" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_019edb4f-00a7-779c-bd67-d57a78f453f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GoodwillImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019f134f-692f-76fd-8f72-c064fd5ad106" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_019edb4f-00a7-779c-bd67-d57a78f453f4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfIntangibleAssets_019f134f-692f-789f-afbb-a3c450e0499a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProceedsFromSaleOfIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019f134f-692f-76fd-8f72-c064fd5ad106" xlink:to="loc_us-gaap_ProceedsFromSaleOfIntangibleAssets_019f134f-692f-789f-afbb-a3c450e0499a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDispositionOfIntangibleAssets_019f134f-692f-7f35-84a6-74ea2c9b804a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_GainLossOnDispositionOfIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019f134f-692f-76fd-8f72-c064fd5ad106" xlink:to="loc_us-gaap_GainLossOnDispositionOfIntangibleAssets_019f134f-692f-7f35-84a6-74ea2c9b804a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_019edb4f-00a7-7875-8a27-dd39bc318a87" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019f134f-692f-76fd-8f72-c064fd5ad106" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_019edb4f-00a7-7875-8a27-dd39bc318a87" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#GoodwillandIntangibleAssetsIntangibleAssetsDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/GoodwillandIntangibleAssetsIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019edb4f-00a7-79d7-8916-23e676922453" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_019edb4f-00a7-71e6-96bc-9c268669f115" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019edb4f-00a7-79d7-8916-23e676922453" xlink:to="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_019edb4f-00a7-71e6-96bc-9c268669f115" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019edb4f-00a7-76f8-ba53-d75cf96d8d78" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_019edb4f-00a7-71e6-96bc-9c268669f115" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019edb4f-00a7-76f8-ba53-d75cf96d8d78" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019edb4f-00a7-76f8-ba53-d75cf96d8d78_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019edb4f-00a7-76f8-ba53-d75cf96d8d78" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019edb4f-00a7-76f8-ba53-d75cf96d8d78_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019edb4f-00a7-7892-a03a-c476b206996d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019edb4f-00a7-76f8-ba53-d75cf96d8d78" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019edb4f-00a7-7892-a03a-c476b206996d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeNamesMember_019edb4f-00a7-730c-8de2-3d9a08a37f10" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_TradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019edb4f-00a7-7892-a03a-c476b206996d" xlink:to="loc_us-gaap_TradeNamesMember_019edb4f-00a7-730c-8de2-3d9a08a37f10" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_019edb4f-00a7-743d-9048-fc636497fcc5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SoftwareDevelopmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019edb4f-00a7-7892-a03a-c476b206996d" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_019edb4f-00a7-743d-9048-fc636497fcc5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelatedIntangibleAssetsMember_019edb4f-00a7-7d50-be49-ff0fbc4f9b9a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CustomerRelatedIntangibleAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019edb4f-00a7-7892-a03a-c476b206996d" xlink:to="loc_us-gaap_CustomerRelatedIntangibleAssetsMember_019edb4f-00a7-7d50-be49-ff0fbc4f9b9a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_019edb4f-00a7-73b8-81e0-2e2ef16504a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019edb4f-00a7-79d7-8916-23e676922453" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_019edb4f-00a7-73b8-81e0-2e2ef16504a5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019edb4f-00a7-7409-8f23-c2bab5ec17ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019edb4f-00a7-79d7-8916-23e676922453" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019edb4f-00a7-7409-8f23-c2bab5ec17ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019edb4f-00a7-7f15-bbfa-9bdbd81a160e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019edb4f-00a7-79d7-8916-23e676922453" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019edb4f-00a7-7f15-bbfa-9bdbd81a160e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019edb4f-00a7-71f4-8d0b-4ce2f8dacd94" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019edb4f-00a7-79d7-8916-23e676922453" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019edb4f-00a7-71f4-8d0b-4ce2f8dacd94" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/PrepaidExpensesandOtherCurrentAssetsDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#PrepaidExpensesandOtherCurrentAssetsDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/PrepaidExpensesandOtherCurrentAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019edb4f-00a7-74d2-b3f0-7b8a2b01c363" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019edb4f-00a7-7900-ac50-e3fda1c81d4a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019edb4f-00a7-74d2-b3f0-7b8a2b01c363" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019edb4f-00a7-7900-ac50-e3fda1c81d4a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByAssetClassAxis_019edb4f-00a7-7a85-9ecb-46f5dad2c49b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByAssetClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019edb4f-00a7-7900-ac50-e3fda1c81d4a" xlink:to="loc_us-gaap_FairValueByAssetClassAxis_019edb4f-00a7-7a85-9ecb-46f5dad2c49b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019edb4f-00a7-7a85-9ecb-46f5dad2c49b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByAssetClassAxis_019edb4f-00a7-7a85-9ecb-46f5dad2c49b" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019edb4f-00a7-7a85-9ecb-46f5dad2c49b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019edb4f-00a7-7c10-af91-9eb9f33da015" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByAssetClassAxis_019edb4f-00a7-7a85-9ecb-46f5dad2c49b" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019edb4f-00a7-7c10-af91-9eb9f33da015" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_AbandonedCloudComputingArrangementMember_019edb4f-00a7-77ea-8deb-a5f8265432fe" xlink:href="maps-20260630.xsd#maps_AbandonedCloudComputingArrangementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019edb4f-00a7-7c10-af91-9eb9f33da015" xlink:to="loc_maps_AbandonedCloudComputingArrangementMember_019edb4f-00a7-77ea-8deb-a5f8265432fe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_019edb4f-00a7-778d-b193-d7fba4dca979" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019edb4f-00a7-74d2-b3f0-7b8a2b01c363" xlink:to="loc_us-gaap_AssetImpairmentCharges_019edb4f-00a7-778d-b193-d7fba4dca979" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/AccountsPayableandAccruedExpensesScheduleofAccountsPayableandAccruedExpensesDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#AccountsPayableandAccruedExpensesScheduleofAccountsPayableandAccruedExpensesDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/AccountsPayableandAccruedExpensesScheduleofAccountsPayableandAccruedExpensesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplierFinanceProgramLineItems_019edb4f-00a7-74b4-8d8f-a7e4b0bed0e1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SupplierFinanceProgramLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplierFinanceProgramTable_019edb4f-00a7-76a7-8618-1a75fb89ae06" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SupplierFinanceProgramTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SupplierFinanceProgramLineItems_019edb4f-00a7-74b4-8d8f-a7e4b0bed0e1" xlink:to="loc_us-gaap_SupplierFinanceProgramTable_019edb4f-00a7-76a7-8618-1a75fb89ae06" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019f135c-82cf-7852-a900-c999313ab2ce" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SupplierFinanceProgramTable_019edb4f-00a7-76a7-8618-1a75fb89ae06" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019f135c-82cf-7852-a900-c999313ab2ce" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019f135c-82cf-7852-a900-c999313ab2ce_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019f135c-82cf-7852-a900-c999313ab2ce" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019f135c-82cf-7852-a900-c999313ab2ce_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019f135c-82cf-7c56-94a4-e9b50d1ec3b9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019f135c-82cf-7852-a900-c999313ab2ce" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019f135c-82cf-7c56-94a4-e9b50d1ec3b9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_SoftwareLicenseAgreementsMember_019f135c-82cf-70de-95ef-357e1d4a5020" xlink:href="maps-20260630.xsd#maps_SoftwareLicenseAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019f135c-82cf-7c56-94a4-e9b50d1ec3b9" xlink:to="loc_maps_SoftwareLicenseAgreementsMember_019f135c-82cf-70de-95ef-357e1d4a5020" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019f135c-82cf-7b39-946a-9c5da6af2b90" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SupplierFinanceProgramTable_019edb4f-00a7-76a7-8618-1a75fb89ae06" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019f135c-82cf-7b39-946a-9c5da6af2b90" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_019f135c-82cf-7b39-946a-9c5da6af2b90_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019f135c-82cf-7b39-946a-9c5da6af2b90" xlink:to="loc_us-gaap_LossContingencyNatureDomain_019f135c-82cf-7b39-946a-9c5da6af2b90_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_019f135c-82cf-728b-85bd-ada9762c8359" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019f135c-82cf-7b39-946a-9c5da6af2b90" xlink:to="loc_us-gaap_LossContingencyNatureDomain_019f135c-82cf-728b-85bd-ada9762c8359" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_SettlementObligationMember_019f135c-82cf-7cc2-a1d6-a6cff201d8a2" xlink:href="maps-20260630.xsd#maps_SettlementObligationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingencyNatureDomain_019f135c-82cf-728b-85bd-ada9762c8359" xlink:to="loc_maps_SettlementObligationMember_019f135c-82cf-7cc2-a1d6-a6cff201d8a2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_019edb4f-00a7-79b6-99f2-c8eaebca5e42" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplierFinanceProgramLineItems_019edb4f-00a7-74b4-8d8f-a7e4b0bed0e1" xlink:to="loc_us-gaap_AccountsPayableCurrent_019edb4f-00a7-79b6-99f2-c8eaebca5e42" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedSalesCommissionCurrentAndNoncurrent_019edb4f-00a7-7d55-8404-60aa539a985e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccruedSalesCommissionCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplierFinanceProgramLineItems_019edb4f-00a7-74b4-8d8f-a7e4b0bed0e1" xlink:to="loc_us-gaap_AccruedSalesCommissionCurrentAndNoncurrent_019edb4f-00a7-7d55-8404-60aa539a985e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedSalariesCurrentAndNoncurrent_019edb4f-00a7-70e4-9efc-ca02132f5865" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccruedSalariesCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplierFinanceProgramLineItems_019edb4f-00a7-74b4-8d8f-a7e4b0bed0e1" xlink:to="loc_us-gaap_AccruedSalariesCurrentAndNoncurrent_019edb4f-00a7-70e4-9efc-ca02132f5865" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_019edb4f-00a7-708c-bd56-8b4436a6d7c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplierFinanceProgramLineItems_019edb4f-00a7-74b4-8d8f-a7e4b0bed0e1" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_019edb4f-00a7-708c-bd56-8b4436a6d7c7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_019edb4f-00a7-7eda-a18b-1fa6682619f3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplierFinanceProgramLineItems_019edb4f-00a7-74b4-8d8f-a7e4b0bed0e1" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_019edb4f-00a7-7eda-a18b-1fa6682619f3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_019edb4f-00a7-7152-ae3e-113e93169389" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplierFinanceProgramLineItems_019edb4f-00a7-74b4-8d8f-a7e4b0bed0e1" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_019edb4f-00a7-7152-ae3e-113e93169389" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligation_019edb4f-00a7-706b-a34d-07b297bafddc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PurchaseObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplierFinanceProgramLineItems_019edb4f-00a7-74b4-8d8f-a7e4b0bed0e1" xlink:to="loc_us-gaap_PurchaseObligation_019edb4f-00a7-706b-a34d-07b297bafddc" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyAccrualAtCarryingValue_019f135c-82cf-7fe4-a750-5604ae611a37" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LossContingencyAccrualAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplierFinanceProgramLineItems_019edb4f-00a7-74b4-8d8f-a7e4b0bed0e1" xlink:to="loc_us-gaap_LossContingencyAccrualAtCarryingValue_019f135c-82cf-7fe4-a750-5604ae611a37" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/WarrantLiabilityDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#WarrantLiabilityDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/WarrantLiabilityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_019edb4f-00a7-7c05-9e81-010585aff126" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_019edb4f-00a7-7065-9b57-c5b1e3998741" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_019edb4f-00a7-7c05-9e81-010585aff126" xlink:to="loc_us-gaap_DerivativeTable_019edb4f-00a7-7065-9b57-c5b1e3998741" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-74ec-959d-ac8648d66642" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019edb4f-00a7-7065-9b57-c5b1e3998741" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-74ec-959d-ac8648d66642" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-74ec-959d-ac8648d66642_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-74ec-959d-ac8648d66642" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-74ec-959d-ac8648d66642_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7667-bb39-9e93804ec53e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019edb4f-00a7-74ec-959d-ac8648d66642" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7667-bb39-9e93804ec53e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_PublicWarrantsMember_019edb4f-00a7-7490-ab73-d60afd5e26e0" xlink:href="maps-20260630.xsd#maps_PublicWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7667-bb39-9e93804ec53e" xlink:to="loc_maps_PublicWarrantsMember_019edb4f-00a7-7490-ab73-d60afd5e26e0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_PrivatePlacementWarrantMember_019edb4f-00a7-7ac5-8c7b-f0f4a3d246df" xlink:href="maps-20260630.xsd#maps_PrivatePlacementWarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019edb4f-00a7-7667-bb39-9e93804ec53e" xlink:to="loc_maps_PrivatePlacementWarrantMember_019edb4f-00a7-7ac5-8c7b-f0f4a3d246df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019f84d5-8c61-7179-be6e-3a954ae58048" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_019edb4f-00a7-7065-9b57-c5b1e3998741" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019f84d5-8c61-7179-be6e-3a954ae58048" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f84d5-8c61-7179-be6e-3a954ae58048_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f84d5-8c61-7179-be6e-3a954ae58048" xlink:to="loc_us-gaap_ClassOfStockDomain_019f84d5-8c61-7179-be6e-3a954ae58048_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019f84d5-8c61-797b-992a-70ee116b701e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019f84d5-8c61-7179-be6e-3a954ae58048" xlink:to="loc_us-gaap_ClassOfStockDomain_019f84d5-8c61-797b-992a-70ee116b701e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019f84d5-8c61-7456-9ea3-085c2cea6789" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019f84d5-8c61-797b-992a-70ee116b701e" xlink:to="loc_us-gaap_CommonClassAMember_019f84d5-8c61-7456-9ea3-085c2cea6789" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightOutstanding_019edb4f-00a7-71de-a798-7b0218cfac92" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019edb4f-00a7-7c05-9e81-010585aff126" xlink:to="loc_us-gaap_ClassOfWarrantOrRightOutstanding_019edb4f-00a7-71de-a798-7b0218cfac92" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_UnitsIssuedDuringPeriodSharesNewIssues_019edb4f-00a7-7b1a-b493-4e7bff0acfdd" xlink:href="maps-20260630.xsd#maps_UnitsIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019edb4f-00a7-7c05-9e81-010585aff126" xlink:to="loc_maps_UnitsIssuedDuringPeriodSharesNewIssues_019edb4f-00a7-7b1a-b493-4e7bff0acfdd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight_019f84d5-8c61-74fa-9954-37a9decfcfa1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019edb4f-00a7-7c05-9e81-010585aff126" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight_019f84d5-8c61-74fa-9954-37a9decfcfa1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesIssuedPricePerShare_019f84d5-8c61-70c1-85c8-ba8483abbf4c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharesIssuedPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019edb4f-00a7-7c05-9e81-010585aff126" xlink:to="loc_us-gaap_SharesIssuedPricePerShare_019f84d5-8c61-70c1-85c8-ba8483abbf4c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ClassOfWarrantOrRightIssued_019edb4f-00a7-70f1-8508-2fba7fbba6d4" xlink:href="maps-20260630.xsd#maps_ClassOfWarrantOrRightIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019edb4f-00a7-7c05-9e81-010585aff126" xlink:to="loc_maps_ClassOfWarrantOrRightIssued_019edb4f-00a7-70f1-8508-2fba7fbba6d4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_019edb4f-00a7-700e-ae4f-6114901cf85d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_019edb4f-00a7-7c05-9e81-010585aff126" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_019edb4f-00a7-700e-ae4f-6114901cf85d" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/EquityDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#EquityDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/EquityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_019edb4f-00a7-7ad6-b0c8-96e27a75d69a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_019edb4f-00a7-7d34-af44-4985205d2cd1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_019edb4f-00a7-7ad6-b0c8-96e27a75d69a" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_019edb4f-00a7-7d34-af44-4985205d2cd1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7fa7-9adb-a1e9515eb440" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_019edb4f-00a7-7d34-af44-4985205d2cd1" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7fa7-9adb-a1e9515eb440" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7fa7-9adb-a1e9515eb440_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7fa7-9adb-a1e9515eb440" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7fa7-9adb-a1e9515eb440_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-73ff-b0b7-b00ed31fca41" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-7fa7-9adb-a1e9515eb440" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-73ff-b0b7-b00ed31fca41" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019edb4f-00a7-7021-9408-0f9e34dc4450" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-73ff-b0b7-b00ed31fca41" xlink:to="loc_us-gaap_CommonClassAMember_019edb4f-00a7-7021-9408-0f9e34dc4450" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_CommonClassVMember_019edb4f-00a7-798b-97d8-51f94c0d8ebd" xlink:href="maps-20260630.xsd#maps_CommonClassVMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-73ff-b0b7-b00ed31fca41" xlink:to="loc_maps_CommonClassVMember_019edb4f-00a7-798b-97d8-51f94c0d8ebd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_CommonStockVotesForShare_019edb4f-00a7-7a43-9367-582c9c280adc" xlink:href="maps-20260630.xsd#maps_CommonStockVotesForShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_019edb4f-00a7-7ad6-b0c8-96e27a75d69a" xlink:to="loc_maps_CommonStockVotesForShare_019edb4f-00a7-7a43-9367-582c9c280adc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestLineItems_019edb4f-00a7-7e20-8849-ec2aedc44954" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterestLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestTable_019edb4f-00a7-7460-a493-771604072d32" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterestTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_MinorityInterestLineItems_019edb4f-00a7-7e20-8849-ec2aedc44954" xlink:to="loc_us-gaap_MinorityInterestTable_019edb4f-00a7-7460-a493-771604072d32" xlink:type="arc" order="2" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipAxis_019edb4f-00a7-7a2f-88c0-e157168ca7f0" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_MinorityInterestTable_019edb4f-00a7-7460-a493-771604072d32" xlink:to="loc_srt_OwnershipAxis_019edb4f-00a7-7a2f-88c0-e157168ca7f0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019edb4f-00a7-7a2f-88c0-e157168ca7f0_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_OwnershipAxis_019edb4f-00a7-7a2f-88c0-e157168ca7f0" xlink:to="loc_srt_OwnershipDomain_019edb4f-00a7-7a2f-88c0-e157168ca7f0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_019edb4f-00a7-728f-8775-0a36577506af" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_OwnershipAxis_019edb4f-00a7-7a2f-88c0-e157168ca7f0" xlink:to="loc_srt_OwnershipDomain_019edb4f-00a7-728f-8775-0a36577506af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_WMHUnitsMember_019edb4f-00a7-7230-ba33-de539b048e36" xlink:href="maps-20260630.xsd#maps_WMHUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_019edb4f-00a7-728f-8775-0a36577506af" xlink:to="loc_maps_WMHUnitsMember_019edb4f-00a7-7230-ba33-de539b048e36" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-72dc-9105-3277e379d65c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_MinorityInterestTable_019edb4f-00a7-7460-a493-771604072d32" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-72dc-9105-3277e379d65c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-72dc-9105-3277e379d65c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7e59-b6eb-cbe63ec5baef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_CommonClassVMember_019edb4f-00a7-7e5b-bde8-32cc5330930d" xlink:href="maps-20260630.xsd#maps_CommonClassVMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_019edb4f-00a7-7522-b73d-73ab47ec7333" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MinorityInterestLineItems_019edb4f-00a7-7e20-8849-ec2aedc44954" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_019edb4f-00a7-7522-b73d-73ab47ec7333" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockSharesConverted1_019edb4f-00a7-7be2-9312-f2ccbfc252b8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ConversionOfStockSharesConverted1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MinorityInterestLineItems_019edb4f-00a7-7e20-8849-ec2aedc44954" xlink:to="loc_us-gaap_ConversionOfStockSharesConverted1_019edb4f-00a7-7be2-9312-f2ccbfc252b8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ConversionOfStockSharesConvertedConversionRatio_019edb4f-00a7-798f-98d6-96b511ab97f9" xlink:href="maps-20260630.xsd#maps_ConversionOfStockSharesConvertedConversionRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MinorityInterestLineItems_019edb4f-00a7-7e20-8849-ec2aedc44954" xlink:to="loc_maps_ConversionOfStockSharesConvertedConversionRatio_019edb4f-00a7-798f-98d6-96b511ab97f9" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/StockbasedCompensationAdditionalInformationDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#StockbasedCompensationAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/StockbasedCompensationAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7e6f-a910-d32b92bf7f9d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7e6f-a910-d32b92bf7f9d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-72a6-8b94-04a4fe3c7177" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7e6f-a910-d32b92bf7f9d" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-72a6-8b94-04a4fe3c7177" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-72a6-8b94-04a4fe3c7177_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-72a6-8b94-04a4fe3c7177" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-72a6-8b94-04a4fe3c7177_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7c18-b5c8-68c6511d2be2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019edb4f-00a7-72a6-8b94-04a4fe3c7177" xlink:to="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7c18-b5c8-68c6511d2be2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_CommonClassVMember_019edb4f-00a7-7354-bb02-8881fe264ff2" xlink:href="maps-20260630.xsd#maps_CommonClassVMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7c18-b5c8-68c6511d2be2" xlink:to="loc_maps_CommonClassVMember_019edb4f-00a7-7354-bb02-8881fe264ff2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_019edb4f-00a7-7c2c-8abe-5b2382730f4f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019edb4f-00a7-7c18-b5c8-68c6511d2be2" xlink:to="loc_us-gaap_CommonClassAMember_019edb4f-00a7-7c2c-8abe-5b2382730f4f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7430-ae11-04de0a5e0121" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7e6f-a910-d32b92bf7f9d" xlink:to="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7430-ae11-04de0a5e0121" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7430-ae11-04de0a5e0121_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7430-ae11-04de0a5e0121" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7430-ae11-04de0a5e0121_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7b4e-bf18-f06ca40bec3d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7430-ae11-04de0a5e0121" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7b4e-bf18-f06ca40bec3d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ClassPUnitsMember_019edb4f-00a7-7f6f-8c65-c8132008ade6" xlink:href="maps-20260630.xsd#maps_ClassPUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7b4e-bf18-f06ca40bec3d" xlink:to="loc_maps_ClassPUnitsMember_019edb4f-00a7-7f6f-8c65-c8132008ade6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_019edb4f-00a7-7964-95ad-63412852a831" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7b4e-bf18-f06ca40bec3d" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_019edb4f-00a7-7964-95ad-63412852a831" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_019edb4f-00a7-7479-9547-8935db9c27d5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7b4e-bf18-f06ca40bec3d" xlink:to="loc_us-gaap_PerformanceSharesMember_019edb4f-00a7-7479-9547-8935db9c27d5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_019edb4f-00a7-749b-b7a6-6204380e123c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7e6f-a910-d32b92bf7f9d" xlink:to="loc_us-gaap_PlanNameAxis_019edb4f-00a7-749b-b7a6-6204380e123c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019edb4f-00a7-749b-b7a6-6204380e123c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_019edb4f-00a7-749b-b7a6-6204380e123c" xlink:to="loc_us-gaap_PlanNameDomain_019edb4f-00a7-749b-b7a6-6204380e123c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019edb4f-00a7-759e-a45a-8503d7c34a40" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_019edb4f-00a7-749b-b7a6-6204380e123c" xlink:to="loc_us-gaap_PlanNameDomain_019edb4f-00a7-759e-a45a-8503d7c34a40" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_A2021EquityIncentivePlanMember_019edb4f-00a7-74c4-b184-6d79af7438bc" xlink:href="maps-20260630.xsd#maps_A2021EquityIncentivePlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_019edb4f-00a7-759e-a45a-8503d7c34a40" xlink:to="loc_maps_A2021EquityIncentivePlanMember_019edb4f-00a7-74c4-b184-6d79af7438bc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019edb4f-00a7-78fb-b127-70ce92db2996" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7e6f-a910-d32b92bf7f9d" xlink:to="loc_srt_RangeAxis_019edb4f-00a7-78fb-b127-70ce92db2996" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019edb4f-00a7-78fb-b127-70ce92db2996_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019edb4f-00a7-78fb-b127-70ce92db2996" xlink:to="loc_srt_RangeMember_019edb4f-00a7-78fb-b127-70ce92db2996_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019edb4f-00a7-7407-bce5-f49eabde4da3" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019edb4f-00a7-78fb-b127-70ce92db2996" xlink:to="loc_srt_RangeMember_019edb4f-00a7-7407-bce5-f49eabde4da3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019edb4f-00a7-7ea5-af8e-d3a05c3ac816" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019edb4f-00a7-7407-bce5-f49eabde4da3" xlink:to="loc_srt_MinimumMember_019edb4f-00a7-7ea5-af8e-d3a05c3ac816" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019edb4f-00a7-7b82-b8b3-36be842d4c1c" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019edb4f-00a7-7407-bce5-f49eabde4da3" xlink:to="loc_srt_MaximumMember_019edb4f-00a7-7b82-b8b3-36be842d4c1c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_019edb4f-00a7-75ed-9be3-145c22e16951" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_019edb4f-00a7-75ed-9be3-145c22e16951" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ReverseRecapitalizationPeriodOfExchangeAgreement_019edb4f-00a7-7e37-8000-50236e252fba" xlink:href="maps-20260630.xsd#maps_ReverseRecapitalizationPeriodOfExchangeAgreement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:to="loc_maps_ReverseRecapitalizationPeriodOfExchangeAgreement_019edb4f-00a7-7e37-8000-50236e252fba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ExchangeOfStockExchangeRatio_019edb4f-00a7-75a7-85c0-0d1b64a47bcb" xlink:href="maps-20260630.xsd#maps_ExchangeOfStockExchangeRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:to="loc_maps_ExchangeOfStockExchangeRatio_019edb4f-00a7-75a7-85c0-0d1b64a47bcb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_019f84ef-2fd5-7840-a4fe-a0144a8a31c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_019f84ef-2fd5-7840-a4fe-a0144a8a31c6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019edb4f-00a7-76e6-a054-512d7011b6a3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019edb4f-00a7-76e6-a054-512d7011b6a3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_019edb4f-00a7-76e4-b9d0-ab7feb63213c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_019edb4f-00a7-76e4-b9d0-ab7feb63213c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_019edb4f-00a7-7a28-a61e-e4c883b07c39" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_019edb4f-00a7-7a28-a61e-e4c883b07c39" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_PeriodOfAutomaticIncreaseOfShares_019edb4f-00a7-7ecf-aa49-928b467fdf72" xlink:href="maps-20260630.xsd#maps_PeriodOfAutomaticIncreaseOfShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:to="loc_maps_PeriodOfAutomaticIncreaseOfShares_019edb4f-00a7-7ecf-aa49-928b467fdf72" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_PercentOfIncreaseInSharesFromCapitalStockOutstanding_019edb4f-00a7-7d0b-bea6-3cfc0a262502" xlink:href="maps-20260630.xsd#maps_PercentOfIncreaseInSharesFromCapitalStockOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:to="loc_maps_PercentOfIncreaseInSharesFromCapitalStockOutstanding_019edb4f-00a7-7d0b-bea6-3cfc0a262502" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_019edb4f-00a7-7a7c-8e45-9cb48242ecdb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_019edb4f-00a7-7a7c-8e45-9cb48242ecdb" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_019edb4f-00a7-7010-a775-77adb2f92e79" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_019edb4f-00a7-7010-a775-77adb2f92e79" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetAward_019edb4f-00a7-7c42-8498-e9eb51308504" xlink:href="maps-20260630.xsd#maps_ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetAward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:to="loc_maps_ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetAward_019edb4f-00a7-7c42-8498-e9eb51308504" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019edb4f-00a7-7f5d-ba34-695880ec9bd1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019edb4f-00a7-7f5d-ba34-695880ec9bd1" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019f84f6-a66a-7a4b-9f94-e984c60997ed" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7edd-8602-86e2ba675dc6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019f84f6-a66a-7a4b-9f94-e984c60997ed" xlink:type="arc" order="13"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/StockbasedCompensationStockUnitsActivityDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#StockbasedCompensationStockUnitsActivityDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/StockbasedCompensationStockUnitsActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-70c4-bde0-ecc725566d74" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7d81-82e4-07d564125e10" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-70c4-bde0-ecc725566d74" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7d81-82e4-07d564125e10" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7b23-9cf2-d062c07d61e3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7d81-82e4-07d564125e10" xlink:to="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7b23-9cf2-d062c07d61e3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7b23-9cf2-d062c07d61e3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7b23-9cf2-d062c07d61e3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7b23-9cf2-d062c07d61e3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-776f-8ab4-048f4ef45c6e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7b23-9cf2-d062c07d61e3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-776f-8ab4-048f4ef45c6e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_019edb4f-00a7-746d-b8c4-fcb899ddae3b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-776f-8ab4-048f4ef45c6e" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_019edb4f-00a7-746d-b8c4-fcb899ddae3b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_019edb4f-00a7-7f32-a125-3ad454e898fe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-776f-8ab4-048f4ef45c6e" xlink:to="loc_us-gaap_PerformanceSharesMember_019edb4f-00a7-7f32-a125-3ad454e898fe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019edb4f-00a7-728a-a0be-d941176265b4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-70c4-bde0-ecc725566d74" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019edb4f-00a7-728a-a0be-d941176265b4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019edb4f-00a7-75bd-b0db-33af8a61b1f0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019edb4f-00a7-728a-a0be-d941176265b4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019edb4f-00a7-75bd-b0db-33af8a61b1f0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019edb4f-00a7-70df-b52c-cdd8e74c63ab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019edb4f-00a7-728a-a0be-d941176265b4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019edb4f-00a7-70df-b52c-cdd8e74c63ab" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_019edb4f-00a7-74b1-bb97-9f0de7a8764d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019edb4f-00a7-728a-a0be-d941176265b4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_019edb4f-00a7-74b1-bb97-9f0de7a8764d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_019edb4f-00a7-760d-b70d-a72e7dce2e04" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019edb4f-00a7-728a-a0be-d941176265b4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_019edb4f-00a7-760d-b70d-a72e7dce2e04" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019edb4f-00a7-748a-b55c-299a2af2df6d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019edb4f-00a7-74ae-8970-4f36c56790f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-70c4-bde0-ecc725566d74" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019edb4f-00a7-74ae-8970-4f36c56790f7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019edb4f-00a7-7889-b200-8409935cdb49" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019edb4f-00a7-74ae-8970-4f36c56790f7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019edb4f-00a7-7889-b200-8409935cdb49" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019edb4f-00a7-79a3-9229-c1990a6637aa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019edb4f-00a7-74ae-8970-4f36c56790f7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019edb4f-00a7-79a3-9229-c1990a6637aa" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_019edb4f-00a7-7aeb-9769-2a373929ab8f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019edb4f-00a7-74ae-8970-4f36c56790f7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_019edb4f-00a7-7aeb-9769-2a373929ab8f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_019edb4f-00a7-76b3-b978-34fb9ebe6d6b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019edb4f-00a7-74ae-8970-4f36c56790f7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_019edb4f-00a7-76b3-b978-34fb9ebe6d6b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019edb4f-00a7-7af0-8d89-f7900366b3bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/StockbasedCompensationScheduleofValuationAssumptionsDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#StockbasedCompensationScheduleofValuationAssumptionsDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/StockbasedCompensationScheduleofValuationAssumptionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7f47-a257-0a0d514d1afc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7855-b579-b19294a497ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7f47-a257-0a0d514d1afc" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7855-b579-b19294a497ec" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7fd3-b47a-20e993731038" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7855-b579-b19294a497ec" xlink:to="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7fd3-b47a-20e993731038" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7fd3-b47a-20e993731038_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7fd3-b47a-20e993731038" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7fd3-b47a-20e993731038_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7bab-b69a-2f62b72c3e3a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7fd3-b47a-20e993731038" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7bab-b69a-2f62b72c3e3a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PhantomShareUnitsPSUsMember_019edb4f-00a7-785e-a881-6faa8ed9313b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PhantomShareUnitsPSUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7bab-b69a-2f62b72c3e3a" xlink:to="loc_us-gaap_PhantomShareUnitsPSUsMember_019edb4f-00a7-785e-a881-6faa8ed9313b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019edb4f-00a7-7301-b2f4-ffc722c5974d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7f47-a257-0a0d514d1afc" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019edb4f-00a7-7301-b2f4-ffc722c5974d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_019edb4f-00a7-75f4-a32a-17a14d86a336" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7f47-a257-0a0d514d1afc" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice_019edb4f-00a7-75f4-a32a-17a14d86a336" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_019edb4f-00a7-7e11-8b49-c36f4a1e54eb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7f47-a257-0a0d514d1afc" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_019edb4f-00a7-7e11-8b49-c36f4a1e54eb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsCostOfEquity_019edb4f-00a7-70db-826b-89ae5d202bd0" xlink:href="maps-20260630.xsd#maps_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsCostOfEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7f47-a257-0a0d514d1afc" xlink:to="loc_maps_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsCostOfEquity_019edb4f-00a7-70db-826b-89ae5d202bd0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_019edb4f-00a7-783d-8665-3f5b49bbdd66" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-7f47-a257-0a0d514d1afc" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_019edb4f-00a7-783d-8665-3f5b49bbdd66" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/StockbasedCompensationStockBasedCompensationCostsDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#StockbasedCompensationStockBasedCompensationCostsDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/StockbasedCompensationStockBasedCompensationCostsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-74df-b493-3c7db26f8341" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7829-a12c-69bb475b538c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-74df-b493-3c7db26f8341" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7829-a12c-69bb475b538c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019edb4f-00a7-74e5-8334-a08c0bc0acf3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfIncomeLocationBalanceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7829-a12c-69bb475b538c" xlink:to="loc_us-gaap_StatementOfIncomeLocationBalanceAxis_019edb4f-00a7-74e5-8334-a08c0bc0acf3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_019edb4f-00a7-751d-841f-3b1843369577" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-74df-b493-3c7db26f8341" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_019edb4f-00a7-751d-841f-3b1843369577" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_019edb4f-00a7-73ac-89c5-7bac91caec6d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-74df-b493-3c7db26f8341" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_019edb4f-00a7-73ac-89c5-7bac91caec6d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1_019edb4f-00a7-759d-b34f-2e06fbc5ed97" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-74df-b493-3c7db26f8341" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1_019edb4f-00a7-759d-b34f-2e06fbc5ed97" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/StockbasedCompensationStockBasedCompensationCostsDetails_1" xlink:type="simple" xlink:href="maps-20260630.xsd#StockbasedCompensationStockBasedCompensationCostsDetails_1"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/StockbasedCompensationStockBasedCompensationCostsDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-74df-b493-3c7db26f8341" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7829-a12c-69bb475b538c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-74df-b493-3c7db26f8341" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019edb4f-00a7-7829-a12c-69bb475b538c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_019edb4f-00a7-751d-841f-3b1843369577" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-74df-b493-3c7db26f8341" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_019edb4f-00a7-751d-841f-3b1843369577" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_019edb4f-00a7-73ac-89c5-7bac91caec6d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-74df-b493-3c7db26f8341" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_019edb4f-00a7-73ac-89c5-7bac91caec6d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1_019edb4f-00a7-759d-b34f-2e06fbc5ed97" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019edb4f-00a7-74df-b493-3c7db26f8341" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1_019edb4f-00a7-759d-b34f-2e06fbc5ed97" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/EarningsPerShareComputationDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#EarningsPerShareComputationDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/EarningsPerShareComputationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightLineItems_019edb4f-00a7-7e8e-a3d4-a0bf4d03f91b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightTable_019edb4f-00a7-77d7-a4b2-1d221b681dc7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ClassOfWarrantOrRightTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_019edb4f-00a7-7e8e-a3d4-a0bf4d03f91b" xlink:to="loc_us-gaap_ClassOfWarrantOrRightTable_019edb4f-00a7-77d7-a4b2-1d221b681dc7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7b6f-9e13-88e645fe6180" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_019edb4f-00a7-77d7-a4b2-1d221b681dc7" xlink:to="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7b6f-9e13-88e645fe6180" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7b6f-9e13-88e645fe6180_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7b6f-9e13-88e645fe6180" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7b6f-9e13-88e645fe6180_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7655-9dd5-57db55cdb7bf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019edb4f-00a7-7b6f-9e13-88e645fe6180" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7655-9dd5-57db55cdb7bf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_019edb4f-00a7-73fb-8885-637cf6186c67" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019edb4f-00a7-7655-9dd5-57db55cdb7bf" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_019edb4f-00a7-73fb-8885-637cf6186c67" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAbstract_019edb4f-00a7-7bed-a80f-f8ddcbc0f905" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_019edb4f-00a7-7e8e-a3d4-a0bf4d03f91b" xlink:to="loc_us-gaap_NetIncomeLossAbstract_019edb4f-00a7-7bed-a80f-f8ddcbc0f905" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_019edb4f-00a7-79d3-8005-2c13c2b6c744" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAbstract_019edb4f-00a7-7bed-a80f-f8ddcbc0f905" xlink:to="loc_us-gaap_ProfitLoss_019edb4f-00a7-79d3-8005-2c13c2b6c744" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_NetIncomeLossAttributableToNoncontrollingInterestAfterReverseMerger_019edb4f-00a7-7511-938c-0792a97de9b9" xlink:href="maps-20260630.xsd#maps_NetIncomeLossAttributableToNoncontrollingInterestAfterReverseMerger"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAbstract_019edb4f-00a7-7bed-a80f-f8ddcbc0f905" xlink:to="loc_maps_NetIncomeLossAttributableToNoncontrollingInterestAfterReverseMerger_019edb4f-00a7-7511-938c-0792a97de9b9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019edb4f-00a7-77c9-a426-33c1da325567" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAbstract_019edb4f-00a7-7bed-a80f-f8ddcbc0f905" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_019edb4f-00a7-77c9-a426-33c1da325567" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_019edb4f-00a7-7048-a40d-da82c9310905" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetIncomeLossAbstract_019edb4f-00a7-7bed-a80f-f8ddcbc0f905" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted_019edb4f-00a7-7048-a40d-da82c9310905" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract_019edb4f-00a7-7c62-9255-c18330c0dce9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_019edb4f-00a7-7e8e-a3d4-a0bf4d03f91b" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract_019edb4f-00a7-7c62-9255-c18330c0dce9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019edb4f-00a7-7537-a021-d43f6aee0ac0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract_019edb4f-00a7-7c62-9255-c18330c0dce9" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019edb4f-00a7-7537-a021-d43f6aee0ac0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019edb4f-00a7-7931-9561-8c9046ca3ee7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract_019edb4f-00a7-7c62-9255-c18330c0dce9" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019edb4f-00a7-7931-9561-8c9046ca3ee7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019edb4f-00a7-7d57-a58c-8dd642b4e3e7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract_019edb4f-00a7-7c62-9255-c18330c0dce9" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019edb4f-00a7-7d57-a58c-8dd642b4e3e7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_NetIncomeLossPerShareBasicAndDilutedAbstract_019edb4f-00a7-7cee-b9e6-ee533f8b3082" xlink:href="maps-20260630.xsd#maps_NetIncomeLossPerShareBasicAndDilutedAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_019edb4f-00a7-7e8e-a3d4-a0bf4d03f91b" xlink:to="loc_maps_NetIncomeLossPerShareBasicAndDilutedAbstract_019edb4f-00a7-7cee-b9e6-ee533f8b3082" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_019edb4f-00a7-7e68-91ff-ed245ec92889" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_NetIncomeLossPerShareBasicAndDilutedAbstract_019edb4f-00a7-7cee-b9e6-ee533f8b3082" xlink:to="loc_us-gaap_EarningsPerShareBasic_019edb4f-00a7-7e68-91ff-ed245ec92889" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_019edb4f-00a7-74fa-b322-5ff61af3b309" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_maps_NetIncomeLossPerShareBasicAndDilutedAbstract_019edb4f-00a7-7cee-b9e6-ee533f8b3082" xlink:to="loc_us-gaap_EarningsPerShareDiluted_019edb4f-00a7-74fa-b322-5ff61af3b309" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/EarningsPerShareDilutiveSecuritiesDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#EarningsPerShareDilutiveSecuritiesDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/EarningsPerShareDilutiveSecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019edb4f-00a7-7ed2-a6b2-5761890aabaa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_019edb4f-00a7-7615-86a0-09f831d6231a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019edb4f-00a7-7ed2-a6b2-5761890aabaa" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_019edb4f-00a7-7615-86a0-09f831d6231a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019edb4f-00a7-775e-93df-0f1df3e02b7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_019edb4f-00a7-7615-86a0-09f831d6231a" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019edb4f-00a7-775e-93df-0f1df3e02b7d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019edb4f-00a7-775e-93df-0f1df3e02b7d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019edb4f-00a7-775e-93df-0f1df3e02b7d" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019edb4f-00a7-775e-93df-0f1df3e02b7d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019edb4f-00a7-738f-8939-fae839543553" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019edb4f-00a7-775e-93df-0f1df3e02b7d" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019edb4f-00a7-738f-8939-fae839543553" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ClassVUnitsMember_019edb4f-00a7-703e-bc46-42822f2063e1" xlink:href="maps-20260630.xsd#maps_ClassVUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019edb4f-00a7-738f-8939-fae839543553" xlink:to="loc_maps_ClassVUnitsMember_019edb4f-00a7-703e-bc46-42822f2063e1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_ClassPUnitsMember_019edb4f-00a7-7241-9c66-e7e2ee2154d7" xlink:href="maps-20260630.xsd#maps_ClassPUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019edb4f-00a7-738f-8939-fae839543553" xlink:to="loc_maps_ClassPUnitsMember_019edb4f-00a7-7241-9c66-e7e2ee2154d7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_019edb4f-00a7-739e-a1b1-5256abdd36cc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019edb4f-00a7-738f-8939-fae839543553" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_019edb4f-00a7-739e-a1b1-5256abdd36cc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_019edb4f-00a7-7e4e-bab8-d13b9329cee8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019edb4f-00a7-738f-8939-fae839543553" xlink:to="loc_us-gaap_PerformanceSharesMember_019edb4f-00a7-7e4e-bab8-d13b9329cee8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_PublicWarrantsMember_019edb4f-00a7-73fd-8f62-bd9eae30e93a" xlink:href="maps-20260630.xsd#maps_PublicWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019edb4f-00a7-738f-8939-fae839543553" xlink:to="loc_maps_PublicWarrantsMember_019edb4f-00a7-73fd-8f62-bd9eae30e93a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_PrivateWarrantsMember_019edb4f-00a7-71ec-974f-0a8bc66fb93a" xlink:href="maps-20260630.xsd#maps_PrivateWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019edb4f-00a7-738f-8939-fae839543553" xlink:to="loc_maps_PrivateWarrantsMember_019edb4f-00a7-71ec-974f-0a8bc66fb93a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_019edb4f-00a7-7699-b5c4-95a71947c24b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019edb4f-00a7-7ed2-a6b2-5761890aabaa" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_019edb4f-00a7-7699-b5c4-95a71947c24b" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/RelatedPartyTransactionsDetails" xlink:type="simple" xlink:href="maps-20260630.xsd#RelatedPartyTransactionsDetails"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/RelatedPartyTransactionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019edb4f-00a7-7187-975b-2a6831c689a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019edb4f-00a7-7187-975b-2a6831c689a9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019edb4f-00a7-74cb-9f17-01a38732bd51" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019edb4f-00a7-7187-975b-2a6831c689a9" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019edb4f-00a7-74cb-9f17-01a38732bd51" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019edb4f-00a7-74cb-9f17-01a38732bd51_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019edb4f-00a7-74cb-9f17-01a38732bd51" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019edb4f-00a7-74cb-9f17-01a38732bd51_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019edb4f-00a7-721e-8406-bfaacbc79c14" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019edb4f-00a7-74cb-9f17-01a38732bd51" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019edb4f-00a7-721e-8406-bfaacbc79c14" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_SilverSpikeMember_019edb4f-00a7-7a21-b639-5c7cbad2c585" xlink:href="maps-20260630.xsd#maps_SilverSpikeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019edb4f-00a7-721e-8406-bfaacbc79c14" xlink:to="loc_maps_SilverSpikeMember_019edb4f-00a7-7a21-b639-5c7cbad2c585" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019edb4f-00a7-72aa-b903-1a6e9f3bed3a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019edb4f-00a7-7187-975b-2a6831c689a9" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019edb4f-00a7-72aa-b903-1a6e9f3bed3a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_019edb4f-00a7-72aa-b903-1a6e9f3bed3a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019edb4f-00a7-72aa-b903-1a6e9f3bed3a" xlink:to="loc_us-gaap_RelatedPartyDomain_019edb4f-00a7-72aa-b903-1a6e9f3bed3a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_019edb4f-00a7-72ff-bac1-fb3bd837616e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019edb4f-00a7-72aa-b903-1a6e9f3bed3a" xlink:to="loc_us-gaap_RelatedPartyDomain_019edb4f-00a7-72ff-bac1-fb3bd837616e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_SilverSpikeSponsorMember_019edb4f-00a7-7452-b5b3-526906e5f678" xlink:href="maps-20260630.xsd#maps_SilverSpikeSponsorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_019edb4f-00a7-72ff-bac1-fb3bd837616e" xlink:to="loc_maps_SilverSpikeSponsorMember_019edb4f-00a7-7452-b5b3-526906e5f678" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_019edb4f-00a7-7a53-affa-342e698d79b0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_019edb4f-00a7-72ff-bac1-fb3bd837616e" xlink:to="loc_us-gaap_RelatedPartyMember_019edb4f-00a7-7a53-affa-342e698d79b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_SilverSpikeHoldingsMember_019f13df-446d-7943-b71d-eb425b188956" xlink:href="maps-20260630.xsd#maps_SilverSpikeHoldingsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_019edb4f-00a7-72ff-bac1-fb3bd837616e" xlink:to="loc_maps_SilverSpikeHoldingsMember_019f13df-446d-7943-b71d-eb425b188956" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfFinancialPositionLocationBalanceAxis_019edb4f-00a7-7117-9065-81282e14cdbc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_StatementOfFinancialPositionLocationBalanceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019edb4f-00a7-7187-975b-2a6831c689a9" xlink:to="loc_us-gaap_StatementOfFinancialPositionLocationBalanceAxis_019edb4f-00a7-7117-9065-81282e14cdbc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts_019edb4f-00a7-796a-b3fb-119da0f3e742" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts_019edb4f-00a7-796a-b3fb-119da0f3e742" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_019edb4f-00a7-762b-b578-6453d973f985" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_us-gaap_DebtInstrumentTerm_019edb4f-00a7-762b-b578-6453d973f985" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_AccountsReceivableRelatedPartiesInterestRate_019edb4f-00a7-77fd-b3e0-b5d2ac8d88b1" xlink:href="maps-20260630.xsd#maps_AccountsReceivableRelatedPartiesInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_maps_AccountsReceivableRelatedPartiesInterestRate_019edb4f-00a7-77fd-b3e0-b5d2ac8d88b1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_AccountsReceivableRelatedPartiesInterestRateIfDefaulted_019edb4f-00a7-7434-af72-60b5ce775d8d" xlink:href="maps-20260630.xsd#maps_AccountsReceivableRelatedPartiesInterestRateIfDefaulted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_maps_AccountsReceivableRelatedPartiesInterestRateIfDefaulted_019edb4f-00a7-7434-af72-60b5ce775d8d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_019edb4f-00a7-73e3-8963-78de446fa2f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_019edb4f-00a7-73e3-8963-78de446fa2f2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_019edb4f-00a7-7960-96b6-ad6809d21602" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_us-gaap_InvestmentIncomeInterest_019edb4f-00a7-7960-96b6-ad6809d21602" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LegalFees_019f13de-3ded-7c3f-bb84-57f974c1b55c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LegalFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_us-gaap_LegalFees_019f13de-3ded-7c3f-bb84-57f974c1b55c" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://weedmaps.com/role/RelatedPartyTransactionsDetails_1" xlink:type="simple" xlink:href="maps-20260630.xsd#RelatedPartyTransactionsDetails_1"/>
  <link:definitionLink xlink:role="http://weedmaps.com/role/RelatedPartyTransactionsDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019edb4f-00a7-7187-975b-2a6831c689a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019edb4f-00a7-7187-975b-2a6831c689a9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019edb4f-00a7-74cb-9f17-01a38732bd51" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019edb4f-00a7-7187-975b-2a6831c689a9" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019edb4f-00a7-74cb-9f17-01a38732bd51" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019edb4f-00a7-74cb-9f17-01a38732bd51_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019edb4f-00a7-74cb-9f17-01a38732bd51" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019edb4f-00a7-74cb-9f17-01a38732bd51_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019edb4f-00a7-721e-8406-bfaacbc79c14" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019edb4f-00a7-74cb-9f17-01a38732bd51" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019edb4f-00a7-721e-8406-bfaacbc79c14" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_SilverSpikeMember_019edb4f-00a7-7a21-b639-5c7cbad2c585" xlink:href="maps-20260630.xsd#maps_SilverSpikeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019edb4f-00a7-721e-8406-bfaacbc79c14" xlink:to="loc_maps_SilverSpikeMember_019edb4f-00a7-7a21-b639-5c7cbad2c585" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019edb4f-00a7-72aa-b903-1a6e9f3bed3a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_019edb4f-00a7-7187-975b-2a6831c689a9" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019edb4f-00a7-72aa-b903-1a6e9f3bed3a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_019edb4f-00a7-72aa-b903-1a6e9f3bed3a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019edb4f-00a7-72aa-b903-1a6e9f3bed3a" xlink:to="loc_us-gaap_RelatedPartyDomain_019edb4f-00a7-72aa-b903-1a6e9f3bed3a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_019edb4f-00a7-72ff-bac1-fb3bd837616e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_019edb4f-00a7-72aa-b903-1a6e9f3bed3a" xlink:to="loc_us-gaap_RelatedPartyDomain_019edb4f-00a7-72ff-bac1-fb3bd837616e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_SilverSpikeSponsorMember_019edb4f-00a7-7452-b5b3-526906e5f678" xlink:href="maps-20260630.xsd#maps_SilverSpikeSponsorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_019edb4f-00a7-72ff-bac1-fb3bd837616e" xlink:to="loc_maps_SilverSpikeSponsorMember_019edb4f-00a7-7452-b5b3-526906e5f678" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_019edb4f-00a7-7a53-affa-342e698d79b0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_019edb4f-00a7-72ff-bac1-fb3bd837616e" xlink:to="loc_us-gaap_RelatedPartyMember_019edb4f-00a7-7a53-affa-342e698d79b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_SilverSpikeHoldingsMember_019f13df-446d-7943-b71d-eb425b188956" xlink:href="maps-20260630.xsd#maps_SilverSpikeHoldingsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_019edb4f-00a7-72ff-bac1-fb3bd837616e" xlink:to="loc_maps_SilverSpikeHoldingsMember_019f13df-446d-7943-b71d-eb425b188956" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts_019edb4f-00a7-796a-b3fb-119da0f3e742" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts_019edb4f-00a7-796a-b3fb-119da0f3e742" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_019edb4f-00a7-762b-b578-6453d973f985" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DebtInstrumentTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_us-gaap_DebtInstrumentTerm_019edb4f-00a7-762b-b578-6453d973f985" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_AccountsReceivableRelatedPartiesInterestRate_019edb4f-00a7-77fd-b3e0-b5d2ac8d88b1" xlink:href="maps-20260630.xsd#maps_AccountsReceivableRelatedPartiesInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_maps_AccountsReceivableRelatedPartiesInterestRate_019edb4f-00a7-77fd-b3e0-b5d2ac8d88b1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_maps_AccountsReceivableRelatedPartiesInterestRateIfDefaulted_019edb4f-00a7-7434-af72-60b5ce775d8d" xlink:href="maps-20260630.xsd#maps_AccountsReceivableRelatedPartiesInterestRateIfDefaulted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_maps_AccountsReceivableRelatedPartiesInterestRateIfDefaulted_019edb4f-00a7-7434-af72-60b5ce775d8d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_019edb4f-00a7-73e3-8963-78de446fa2f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_019edb4f-00a7-73e3-8963-78de446fa2f2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest_019edb4f-00a7-7960-96b6-ad6809d21602" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_us-gaap_InvestmentIncomeInterest_019edb4f-00a7-7960-96b6-ad6809d21602" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LegalFees_019f13de-3ded-7c3f-bb84-57f974c1b55c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_LegalFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_019edb4f-00a7-7b4a-8ea0-6bd00f13181c" xlink:to="loc_us-gaap_LegalFees_019f13de-3ded-7c3f-bb84-57f974c1b55c" xlink:type="arc" order="6"/>
  </link:definitionLink>
</link:linkbase>
