Lahoo
A long, slow, annoying way of telling someone they're a total failure. Usually said by Michaels who think they're better than everyone.
"Lahoo! You're the worst!", Michael, after losing a video game to his cousin.
"Lahoo! You can't even beat me at Mario Kart!", Michael, who is very confident.
"Lahoo! I'm the best! You're the worst!", Michael, who thinks he's the best at everything.