Knockout punch

/nˈɒkaʊt pˈʌntʃ/

/nˈɑːkaʊt pˈʌntʃ/

Knockout punch

a tool used to create precise holes in metal surfaces, typically in electrical enclosures or panels, to accommodate conduit or pipe fittings

a hard punch that renders the opponent unable to continue boxing

synonyms : haymaker

Examples

1. Knockout punch, sent him right to the canvas.

2. So it was a knockout punch.

3. And the voters of Tennessee have given Bob Corker a knockout punch.

4. This could have been a knockout punch for us.