A fork of Rural Dictionary
It means people who talks too much useless things and being silly. It translated from chinglish, usually used after the phrase "you can you up".
A: I don't like you work. Someone else can do it so much better than you. B: you can you up, no can no bb.
If you can do it better then go and do it yourself, but if you can't do it then dont trash talk.
IF YOU CAN UP, NO CAN NO BB! : You do the laundry yourself then! But i dont know how! Then IF YOU CAN UP, NO CAN NO BB!