1. knock it off - Verb
2. knock it off - Interjection
knock it off (third-person singular simple present knocks it off, present participle knocking it off, simple past and past participle knocked it off)
(colloquial, chiefly imperative, idiomatic) To cease doing something, particulary annoying or unpleasant; to desist.
Would you two please knock it off with the shouting? I'm trying to sleep.
knock it off
Cease doing something, particularly annoying or unpleasant; desist.
Knock it off! This is the last time I'm telling you!
Synonyms: cut it out, give it a break
If you’re toasting with the real thing, you have to be very careful not to clink too hard or accidentally knock it off its coaster because — spoiler — it will shatter. Source: Internet
I asked that policymakers be silent nearly, knock it off, stop worrying about a deadline, and let the research method go forward, he said. Source: Internet
Maybe the partybstaff isn’t focused on that right now, but the party leader should be and he should ask them to knock it off for a few days, or at least focus on getting a deal done. Source: Internet
Sigurdur Óli has a friend who shocks the detective by revealing his wife-swapping behavior, then asks to talk to a husband-and-wife amateur team of blackmailers and get them to knock it off. Source: Internet
And so please, if you’re doing that, knock it off. Source: Internet
He basically told Russia and other supporters that they just need to knock it off. Source: Internet