用to fly off the handle表达“大发脾气”

短语 fly off the handle 的意思是大发脾气，勃然大怒。

• When I told Dad I had crashed his car again he flew off the handle.
• Jane is trying to get to sleep, so if you wake her up she will fly off the handle.

值得注意的是，短语 to get a handle on something 的意思是理解、掌握某事。

• I don‘t like this new computer – I can‘t get a handle on the strange keyboard.