When a person is leaving the room for something, but can't because a funkalicious song just came on the radio. Will usually start dancing and singing along until it's over.
Girl 1: We're gonna be late for the meeting if we don't leave now!
Girl 2: NU UH GIRL KESHA JUST CAME ON DA RADIO
Girl 1: Great, a radio leash.
Girl 2: THIS MAH SONG *starts spot-dancing