Don't be an ass.
ばかを言うな
Don't be foolish!
ばかなことをするな[言うな]
Don't be mushy.
甘っちょろいことを言うな
Don't be ridiculous.
ばかなことを言うなよ
Don't be silly.
ばかを言うな
Don't give me any of your lip!
生意気なことを言うな(◆None [Less] of your lip!ともいう)
Don't give me any of your mouth.
つべこべ言うな
don't give me that
((略式))そんな話にだまされないぞ,よく言うよ
Don't give up [quit] your day job.
((略式))君には実力[才能]がない(◆鼻歌を歌っている人などに「定職を投げ出すな」の意で言う)
Don't make me laugh.
((略式))笑わせるな,ばかなことを言うな