Fuk nuk

An abbreviation of the forever classy term, fuck knuckle.
A certified dip shit.
A definite dense cunt.
One whose personality just so happens to resemble a twat waffle, if you will.

Listen here, you damn dirty fuk nuk. If you don't shut the fuck up right here and now then I'm going to have to slam your sister right in her shit chute just to show you which one of us is the true alpha dog.