come off it住嘴，别吹牛了口语常用句型，不让某人瞎说话

　　例

　　A: Mark seems to be a really interesting guy.

　　马克好像是一个很有意思的人。

　　B: Oh, come off it! The guy's as dumb as a rock.

　　哦，别胡扯!这家伙呆得像石头一样。

　　-一摘自新英汉《英语口语句型手册》