fly off the handle

US /flaɪ ɔf ðə ˈhændl/
UK /flaɪ ɔf ðə ˈhændl/
"fly off the handle" picture
1.

发脾气, 大发雷霆

to suddenly lose your temper and become very angry

:
He tends to fly off the handle when he's stressed.
他压力大的时候容易发脾气
Try not to fly off the handle, it won't solve anything.
尽量不要发脾气,那解决不了任何问题。