To become very angry, often quickly. Oh man, Dad is going to blow his top when he sees that I wrecked his car!The boss is definitely going to blow his top when he hears we lost that big client.Mom totally blew her top when I told her I had failed math.
1. Also, blow one's stack. Fly into a rage; lose one's composure. For example, If she calls about this one more time I'm going to blow my top, or Warren is generally very easy-going, but today he blew his stack. The top here has been likened to the top of an erupting volcano; the stack alludes to a smokestack. [Slang; first half of 1900s]
2. Go crazy, become insane, as in When she regains consciousness, she just may blow her top. [Slang; first half of 1900s] Also see flip one's lid.
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.
(British English) (American English blow your ˈstack) (informal) suddenly become very angry: My mum blew her top when she found out that I’d damaged her car.
To lose one’s temper. The first two terms allude to clearing the stack of a ship by blowing air through it; the last refers to the sudden power stoppage when a fuse blows. All are slang from the first half of the twentieth century. Jane Smiley wrote in Horse Heaven (2000), “‘It’s kind of fun in a way. At least I get to blow my stack a lot and they don’t mind. Blowing your stack is the way they do things here.’”
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