the.com/finisher

The move that ends the argument before the judges have to.

means A decisive signature attack or action that settles a contest outright, no deliberation required.

from Straightforward agent-noun work: 'finish' (from Old French 'fenir', rooted in Latin 'finire', to bound or limit — the same root giving us 'final' and 'finite') plus the workhorse suffix '-er', meaning 'one who does the thing.' The wrestling/MMA sense is a 20th-century narrowing — finishing stopped meaning merely 'completing' and started meaning 'ending it emphatically, on your terms.'

origin
wrestling term for a signature knockout move
psychology
telegraphed for drama, still unstoppable
gym slang
the last brutal set that breaks you
irony
often the shortest move, biggest consequence
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