knock sb's block off
informalIf you say that you will knock someone's block off, you are threatening to hit them very hard, especially on the head:
I'll knock his block off if he tries anything with me!
Thesaurus: synonyms and related words
Hitting and beating
- a bunch of fives idiom
- a rap on/over the knuckles idiom
- at-risk
- bang up sb/sth
- bashing
- deck
- hell
- kick
- knock
- lay
- lay sb out
- licking
- mess sb up
- pasting
- pound
- pummel
- put the boot in idiom
- swing
- thump
- whack
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