knock someone's block off

Definitions

1. 1

   To strike a person in the head, causing them to fall to the ground, especially in an…

   To strike a person in the head, causing them to fall to the ground, especially in an unconscious condition; to beat up a person.

   • "I can't stand the sight of him," he would say, "and I'd be glad if somebody would come along and knock his block off—when he was not in the ring."
   • An airport cab starter threatened to knock Fiorello H. LaGuardia's block off when the New York Mayor parked his car across the taxi line.
   • "If anyone wants to call a guardsman a draft dodger, tell him to stand in front of me and say it and I'll knock his block off," Gen. Fluck said.

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