knock it off!

Knock it off! (stop doing something which is annoying you) — Ну хватит уже! Прекрати! Да перестаньте вы! Кончай! Перестань!

Example: Oh knock it off Jill, I'm really not in the mood for your jokes.(Cambridge International Dictionary of Phrasal Verbs)

see also
[cut it out]
[заткнись]
[отстань]