嘴上挂油瓶 - Chinese Idiom

嘴上挂油瓶:

Literally means:

the oil bottle is hanging over the mouth

Actually means:

It figuratively means that when a person is angry or displeased, his mouth pouts upwards like a kitchen peg that can be used to hang an oil bottle on.

It is an exaggeration, sometimes with a humorous tone. Often used to describe an unhappy young person.

形容生气或不满意，或不高兴时嘴唇翘得很高,，似乎可以在上面挂住油瓶的样子。

这是夸张 的说法，有时带有开玩笑的意味。多指年轻人 生气的样子。