“Whar doon” is a shortcut for the phrase, “What are you doing” and acts as its slang replacement.
It’
s mostly used in the form of a
question, but doesn’
t have to be.
Me:
Hey, whar doon?
My
sister: Drugs hbu?
Me: Whar doon tonight? Wanna catch a movie?
My sister: I’m bust tonight! Whar doon tomorrow?
Me: I don’
t care whar doon tomorrow because I wanted to hang tonight.