封住嘴

fēngzhùzuǐ ㄈㄥ ㄓㄨˋ ㄗㄨㄟˇ

    • to silence someone

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
seal the mouth
Meaning
To stop someone from speaking or silence them. It can be done by force, orders or bribes.

Sources