A motherfucker. Different from [mofo], Mo Fackie is a breed unto its own. The large difference between Mo Fackie and [mofo] is that unlike [mofo], Mo Fackie is an exaggeration on 80's slang. Furthermore, Mo Fackie relies on assonance to assimilate itself to [mofo].
> Hey, Hoo Kid, that's one ka-raaaaaazy Mo Fackie we got {sic} here.