狗嘴里吐不出象牙

狗嘴裏吐不出象牙
gǒuzuǐlitǔbùchūxiàngyá
  1. lit. no ivory comes from the mouth of a dog (idiom)
  2. fig. one does not expect fine words from a scoundrel

CEDICT

Homographs

狗嘴里吐不出象牙 gǒuzuǐlǐtǔbùchūxiàngyá

Entry Composition

1 狗 gǒu dog

classifiers: 隻, 條
2 嘴里 zuǐlǐ
  1. mouth
  2. in the mouth
  3. on one's lips
  4. speech
  5. words
3 吐 tǔ
  1. to spit
  2. to send out (silk from a silkworm, bolls from cotton flowers etc)
  3. to say
  4. to pour out (one's grievances)
4 不出 bùchū to not exceed; to not surpass
5 象牙 xiàngyá
  1. ivory
  2. elephant tusk