| Clincher 1. (n.) One who, or that which, clinches; that which holds fast. 2. (n.) That which ends a dispute or controversy; a decisive argument. Thesaurus Entries KO, conclusive argument, coup de grace, crusher, death stroke, deathblow, end-all, ender, final stroke, finisher, finishing stroke, floorer, kayo, kayo punch, knockdown argument, knockout, knockout blow, last dab, quietus, settler, sockdolager, stopper, trump |