A dog cannot spit Ivory out of its mouth
It also means that a dog can't spit out ivory and a dog can't find ivory. Another bad guy can't say anything like that.
It comes from the first fold of Yuan Qu Xuan, meeting the Emperor: "father and these things, what's the good thing to say, what's the axiom, the dog can't spit out ivory.
Idiom explanation
Pinyin of idiom: G ǒ uzu ǐ L ǐ t ǔ B ù ch ū Xi à ngy á idiom traditional style: the dog can't spit out ivory idiom spelling: gzltbcxy degree of common use: General idiom word application: derogatory
The use of Idioms
Idiom usage: used as object and clause; used for satire and joke idiom structure: combined idiom generation time: Ancient idiom synonym: unable to spit out tiger teeth in pig mouth
A dog cannot spit Ivory out of its mouth
a land of propriety and compliance - lǐ ràng wéi guó