knock it off

knock it off idiom
Quit or stop doing something, as in Knock it off, boys! That's enough noise. This term is often used as an imperative. [Colloquial; c. 1900] Also see knock off.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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