Seinfeld, the American sitcom that ran from 1989 to 1998, used short slap-bass stings to move between scenes instead of a traditional theme song in each episode segment, giving the show its distinctive, breezy rhythm. As clips and parodies spread online, the riff became shorthand for a sitcom cut itself, detached from any single episode. Editors now reuse it to signal irony, embarrassment or a sudden change of subject, because audiences recognise the sound instantly and understand the joke before a word is spoken.