住口

zhùkǒu
  1. shut up
  2. shut your mouth
  3. stop talking

CEDICT

to stop talking; to shut up

Wiktionary

停止说话，多含有命令他人中止发言之意。《红楼梦．第六六回》：「你又忘情了，还不住口！」也作「住嘴」。

重編國語辭典

Entry Composition

1 住 zhù
  1. to live
  2. to dwell
  3. to stay
  4. to reside
  5. to stop
  6. (suffix indicating firmness, steadiness, or coming to a halt)
2 口 kǒu
  1. mouth
  2. classifier for things with mouths (people, domestic animals, cannons, wells etc)
  3. classifier for bites or mouthfuls