blow your top
blow (one's) top
To become very angry, often quickly. Oh man, dad is going to blow his top when he sees that I wrecked his car!
blow your topINFORMAL
If you blow your top, you become very angry with someone and shout at them. I blew my top recently and broke my right hand hitting a dustbin. I never asked personal questions because she'd always blow her top. Compare with blow your stack.
blow your toplose your temper.
Two, chiefly North American, variants are blow your lid and blow your stack .