wbkn
Wbkn is short for who be king naab. It is an expression to point out that the person who just made a stupid action is a very big naab (noob). This usually applies to people who do tai chi and listen to nebby larp music with a guitar in the background and have a lot of older sexy ladies they met at tai chi.
Dude: Wbkn?
Other dude: Mbb (ma bro be) omfg!
Other dude: Mbb (ma bro be) omfg!