A phrase trolls use to piss off an already mad person even more. > Person 1:WTF THIS IS THE DUMBEST SHIT THREAD EVER HOLY SHIT OMG IM SO FUCKING MAD IM GOING TO KILL YOU ALL!!!!1!! > Person 2:lol U mad bro? > Person 1: FFFFFFUUUUUUUUUUUUUUUUUUUUUUUUU