In a soundproof music studio, "biggest bum in the world" stars a punk drummer with a mohawk. She strips behind the kit, using drumsticks to tease her pierced labia. "biggest bum in the world" syncs each thrust to a beat—four fingers in her pussy on the snare, thumb in her ass on the kick. "Play me like a solo," she growls, the camera catching sweat flying with each hit. A mic stand becomes a dildo, cold metal sliding in as she rides it on the throne. "biggest bum in the world" climaxes with a cymbal crash, her squirt hitting the skins like rain. She licks the mic, tasting herself and metal. "biggest bum in the world" fuses legal rock 'n' roll with explicit female rhythm.