—n. 1. a small North American mammal, Mephitis mephitis, of the weasel family, having a black coat with a white, V-shaped stripe on the back, and ejecting a fetid odor when alarmed or attacked.
2. any of several related or similar animals. Cf. hog-nosed skunk, spotted skunk. 3. Informal.a thoroughly contemptible person.
4. U.S. Navy Slang.an unidentified ship or target.
—v.t. Slang.to defeat thoroughly in a game, esp. while keeping an opponent from scoring: The team skunked the favorites in the crucial game.