Fowlmouth is one of the minor characters on the animated series Tiny Toon Adventures. He was a young rooster with a New York accent, voiced by Rob Paulsen introduced with a seemingly mellow personality but, as his name alluded to, had a tendency to explode into bleeped-out graphic swearing whenever things didn't go his way. He was later cured of this habit per request, (in order to score a date with Shirley the Loon) when his refusal to swear in front of babies was exploited. This was particularly ironic, given the target audience of the show.
He made slightly more frequent appearances later, revealing he was still somewhat pushy and rude, especially in movie theaters. He has since replaced swearing with the euphemism "dad gum".