it originated from a mis-hearing a line from the epic show PurePwnage, where FPS Doug stated somewhere along the lines of "Ownerzarrrr" and Michael thought he said Ponorzorkkk.
Ponorzork can be used to substitute lots of different words into making your vocabulary l337 and uber. spread the word!
Player1:Oh my god i just got an overkill extermination!
Player1: Did you see that episode of south park last night?
Player2: I know it was Ponorzork!
Player1: Man i just Ponorzorked that Megan girl's vagina last night from our science class.