come off it
US /kʌm ɔf ɪt/
UK /kʌm ɔf ɪt/

1.
sudahlah, jangan mengarut
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?
Oh, sudahlah, awak tak betul-betul percaya tu, kan?
•
Come off it, you know that's not true.
Sudahlah, awak tahu itu tidak benar.