A malfunction is a state in which something functions incorrectly or is obstructed from functioning at all. Some types of malfunctions are: Malfunction (parachuting), malfunction of a parachute Sexual malfunction, also called "sexual dysfunction" See also dyspareunia Wardrobe malfunction, a euphemism, or slang term, for accidental nudity in public Malfunction Junction, an ill-functioning interchange Firearm malfunction, the failure of a firearm to function as expected.