Definition
To respond to someone in an unreasonably angry and abrupt manner.
对（某人）大声训斥
When I asked him why he was late, he snapped my head off.
当我问他为什么迟到时，他对我大发雷霆。
She's under a lot of pressure, so she might snap your head off if you ask her a question.
她承受着很大的压力，所以如果你问她问题，她可能会对你大发雷霆。
I was only trying to help, but he snapped my head off.
我只是想帮忙，但他却对我大发雷霆。