Guys, "sike" from my perspective has NOTHING to do with the internet. I've never typed it until today and I don't think I've ever seen it online before assisting in this thread jack. However, back in junior high, we wrote it as "sike" in those little comics and notes that we wrote and drew and folded like paper footballs and paper wallets to pass around in class when the teacher was writing on the board.

And yes, at least most of us knew it came from "psych."

But mostly I remember dudes coming up to shake hands with you in the hall, and they would pull their hand away and make like they were combing their hair, and say "SIKE!"

That shiz must be from a movie but I cannot remember it.