quit it

放っておけよ(ほっとけよ!) Leave it or me alone.
 
よしてくれ Don’t do that! Don’t say it like that! Don’t talk about rectal polyps when we’re eating!
 
加減にしろ(いいかげんにしろ) Knock it off (has the sense of parents scolding children) ‘~にしろ! ‘ is more manlike, but ‘~なさい‘ is more feminine.
 
辞めてくれ(やまてくれ) Similar to ほっとけよ but has a more begging tone.