A group of people living in the lowest level of city food chain, dreaming about marrying a stunning beautiful woman (so called goddess), and being critic for anything that government is going to do, anything. This word is first invented in one of China's most famous BBS, Baidu tieba. People often say diaosi is a style of living.
the most famous Diaosi from mainland China is Yi Li, a former soccer player.
Diaoyu, a Chinese word pronounced Dee-ow-yew, is the name of some islands, as well as the name of a sex act.
Diaoyu, as a verb, is the act of ejaculating on a Japanese girl's face, and afterwards she looks up at you and says "Dear, I admit... the Diaoyu Islands belong to China."
"Last night I diaoyued my piano bar hostess and it only cost me 1000 Yen."