knock someone's head/block off

idiom

Definition of knock someone's head/block off

informal
: to hit someone very hard I'm so angry I'd like to knock his block off.

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“Knock someone's head/block off.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/knock%20someone%27s%20head%2Fblock%20off. Accessed 3 Dec. 2020.

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