Stems from the classic internet w00t.
n. One who w00ts excessively, almost orgasmically.
"You're such a w00t-off, shut up."
v. To command someone to go away because of their obnoixiously happy/hyperactive nature.
n. "You're such a w00t-off, shut up."
v. "w00t-off man, you're really annoying me."