Homer Simpson is the bumbling father at the centre of The Simpsons, one of television's longest-running animated comedies, and his voice is instantly recognisable even in a clip this short. The USA USA USA chant works because it borrows the rhythm of a real sports crowd while Homer's overexcited delivery pushes it into parody. Shared widely on soundboards and in short-form edits, it has become a quick shorthand for American pride, ironic patriotism and exaggerated celebration, especially around sports results, holidays and national moments.