蝇粪点玉

Explanation: Point spots, interpreted as insulting, profane. Dung flies tarnished jade. Bad metaphor framed man. 　　Usage: The main predicate; as object; containing derogatory 　　Source: Tang ang "real feast Hu Chu ban the" Poetry bluebottle a phase point, then into white jade injustice. "Song Lu Dian" Pi Ya "bluebottle fecal material in particular can be lost, although I still can not help but jade, jade is the so-called fly dung point also." 　　Examples: Song Lu Dian "Pi Ya release worms": "bluebottle fecal material in particular can be lost, although I still can not help but jade, so-called ~ is also."