Akademik

Sunday punch

noun

a hard punch that renders the opponent unable to continue boxing

• Syn: ↑haymaker, ↑knockout punch, ↑KO punch

• Hypernyms: ↑punch, ↑clout, ↑poke, ↑lick, ↑biff, ↑slug

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ˌSunday ˈpunch 7 [Sunday punch] noun (informal, especially US)

an especially hard blow or attack

Useful english dictionary. 2012.