You would
think it'
s just a What The Fuck, with one
extra F by accident, but WTFF means
What The Freaking Fuck.
Melvin: Oh god I think I got my
girlfriend pregnant or something. I
don't really know.
Kyle: Whatchu mean? You used protection right?
Melvin: I
don't know...
Kyle: WTFF, Mel... Something's wrong with you.