Senses
青蝇/ 青蠅 greenbottle fly
the greenbottle fly; a bluebottle fly
青蝇/ 青蠅 slanderer
a slanderer or scandalmonger; also used to refer to poems that criticize such people
青蝇/ 青蠅 Qing Ying
an ancient poem from the Book of Songs used by high officials to criticize King You of Zhou