Erbility (pronounced er'biliti) is a Chinglish noun, means ability of being a jerk or douchebag. Er means two, and bi (pronounced bee) means
pussy or
cunt in Chinese. But when they are combined, erbi (pronounced 'erbee), it means very
stupid and retarded. Now just like niubility or zhuangbility, Chinese started to say erbility for fun, in order to make the word more sounds like an English.