to foam at the mouth
01
气得发疯, 怒不可遏
to become extremely furious about something
![to [foam|froth] at the mouth definition and meaning](https://cdn.langeek.co/photo/60628/original/angry?type=jpeg "to [foam|froth] at the mouth definition and meaning")
例子
He was foaming at the mouth when he found out they had deleted his files.
他发现自己的文件被删了，气得发疯。
02
* (especially of an animal) to have a mass of small bubbles in and around its mouth, especially because it is sick or angry
