STOPU! PUREEZU, STOPU!! = STOP! PLEASE, STOP!!
pwnzing some luzr = owning some loser
L33t shardz of ph33r!! = Leet shards of fear!!
Ph34r! = Fear!
3vil = evil
SOS-dan - the high school club in the anime "The Melancholy of Haruhi Suzumiya"