The meaning of "blow one’s top" is:
The definition of "blow one’s top" is:
(verb) to lose one’s temper, to become mad quickly
If you’re not careful you might blow your top. You should relax.
I caught my boyfriend with another woman. I was so mad that I blew my top and kicked him out of the house.
That policeman is always blowing his top when he sees a criminal. He should be stopped.
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