Meaning of zhù zuǐ:
zhù zuǐ
住嘴
Verb
to hold one's tongue
Tā jiào tā zhù zuǐ, yīnwèi tā yīzhí zài dǎduàn biérén.
她叫他住嘴，因为他一直在打断别人。
She told him to hold his tongue because he kept interrupting others.
Interjection
Shut up!
Huìyì qījiān, yīgè rén rěn bù zhù hǎn: 『Zhù zuǐ!』
会议期间，一个人忍不住喊：『住嘴！』
During the meeting, someone couldn't help but shout: 'Shut up!'
