" is a catchphrase used by the fictional character Homer Simpson, from the television series The Simpsons,
an animated sitcom (1989–present). It is an exclamation typically used after Homer injures himself, realizes that he has done something stupid, or when something bad has happened or is about to happen to him. All his prominent blood relations—son Bart, daughters Lisa and Maggie, his father, his mother and half-brother—have also been heard to use it themselves in similar circumstances. On a few occasions, Homer's wife Marge and characters outside the family such as Mr. Burns and Sideshow Bob have also used this phrase.