A Cuban or Puerto Rican slang used to describe very avidly the physical sound of beating, hitting, or striking someone severely. ALso used to describe somethingyou did that hurt yourself or others and caused great pain.
You did what -- quit school? Whack! Computer - gone. You're playing Wow and not at the dinner table? Whack! Your eyebrow moved slightly upward when I walked into the hallway? FWAKATA - belt to the eyeball. Oh you punched a hole in the wall? You just lost your PC rights for the month and we're going to Home Depot. Why? For mana supplies to cast Cure on the wall pronto!
#2 I hit this girl at tha bar and I was all liek FWAKATA!
Jokes, pics, chain mails, plastic bottle warnings, "girl-power" poems, etc that friends forward en masse. Often labeled "this is funny!" or "a must read" but seldom are either. The worst fwunk mails end with the instruction to forward it to your friends and the person who sent it.
Antagonist: *Throws slimy brown peanut at aerodynamic protagonist*
Aerodinamic protagonist: *Quickly applies all system resources to frontal cortex, initiating hostile retaliation sequence. Aggressive measures are taken to protect their center consol. "Fuak owf !" they exclaim, concluding the battle and humiliating the inferior Antagonist.