Meaning of the word "Knock it off" in English

What does "Knock it off" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

Knock it off

US /nɑk ɪt ɔf/
UK /nɒk ɪt ɒf/

Idiom

stop doing something annoying or inappropriate

Example:
Hey, you two, knock it off! I'm trying to concentrate.
If you don't knock it off, you'll be sent to your room.