Woo-hoo! is a catchphrase used by Homer. He uses it when he is happy. It is often followed by a D'oh!. In one episode, he is seen going, "D'oh! D'oh! D'oh! Woo-Hoo! D'oh! D'oh! D'oh! D'oh! D'oh! D'oh! Woo-Hoo!" while a roulette wheel spins around. When it gets to 17, his number, he says, "Woo-Hoo!" In another, he says it, but when Marge protests, he says, "I said, 'Woo-Hoo,'" in the same tone. In Mona Leaves-a, Mona says in her will that she will give Homer the best thing, to which Homer replies, "Woo-Hoo!".
Yahoo - In HOMЯ, Homer shouts yahoo as a cheer after hearing his stock placements, as the phone responds with Yahoo! stock.
Used in other media[]
Family Guy - In the crossover "The Simpsons Guy", Peter Griffin says it as he hits Homer with wood during their fight. Homer also says it during their Air-Force fantasy.
SpongeBob SquarePants - In “Sandy’s Nutmare”, Sandy says it when she makes her homemade nutty butter.