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A jumbo-sized chicken from the '90s era cartoon Animaniacs. He can't fit into the normal society of farm chickens because he is as large as a human- they all run away when he comes near, as shown in his theme song. So he dresses up like a human to try to assimilate into human society. However, his disguises are usually terrible, the worst being just a mustache. Only one human per episode can tell that he is a chicken; the rest laugh when that one human brings up the subject. But, somehow, Boo's costume always falls off, and the people find out he's a chicken. They usually maul him afterwards, and he goes back to his farm. Boo was created on the Animaniacs episode "Taming of the Screwy", where viewers heard a man saying "He's a giant chicken, I tell ya! A GIANT CHICKEN!" while the storyline takes viewers through a hallway at the Warner Brother's studios.
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