wchusayin

a) A short, quick and lazy way to say "What you sayin?" Which is slang for "What are you doing" or "What's up" or "whats going on".

b) It can also be used to ask a person what he/she is speaking about.

A) NAZ : Yo I'm bored b, wchusayin?

MIG : Same shit, same toilet, wchusayin?

NAZ : just here, thinking of you!

MIG : wtf?

B) NAZ : Hey man you ever heard of a shower?

MIG : Wchusayin?

NAZ : I'm sayin u smell like a dirty choda so go shower!