1 definition by Luo Mengyu
It's a Chinglish. In Chinese Niu means cow,which also means that someone is very capable.Bi(pronunciation Bee),which is used to refer a person rudely,means pussy or fomally genital.
Many people think they are full of niubility, and like to play zhuangbility, which only reflect their shability.
by Luo Mengyu December 3, 2007