Protest vote. 11 connected concepts: Single transferable vote (related to), Voter turnout (related to), Write-in candidate (related to), Strategic voting (related to), Abstention (related to), None of the above (related to), Spoilt vote (related to), 2024 London mayoral election (related to), Lord Buckethead (related to), Official Monster Raving Loony Party (related to), Count Binface (related to).