come off it

US /kʌm ɔf ɪt/
UK /kʌm ɔf ɪt/
"come off it" picture
1.

やめろよ, ふざけるな

used to tell someone that you do not believe what they are saying, or that you disagree with it

:
Oh, come off it, you don't really believe that, do you?
おいおい、やめろよ、本当にそんなこと信じてないだろ?
Come off it, you know that's not true.
やめろよ、それが真実じゃないって知ってるだろ。