jank-ass mofo 

a typical mofo (some one who takes pleasure in screwing moms or someone who thinks theyre "all that"), but unnecessarily redundant and a complete train-wreck
often used to express some form of anger towards another person

Did you see what that jank-ass mofo did?? He gave me a f***ing F on my homework!

jank-ass mofo by angie gonzalez December 19, 2009