created sense approved 狗嘴里吐不出象牙/狗嘴裏吐不出象牙 · gǒuzuǐlitǔbùchūxiàngyá · vile speech
狗嘴里吐不出象牙 / 狗嘴裏吐不出象牙
gǒuzuǐlitǔbùchūxiàngyá
vile speech
One cannot expect decent or refined words from someone who is inherently coarse or malicious.
别听他胡说，他那个人向来是狗嘴里吐不出象牙。