The Taco Bell bong comes from the fast-food chain's branding, where a bell has long been part of its name and logo and a short chime is used to mark the brand. The clean half-second clip circulated as a meme sound because it is instantly recognisable even without any picture or words. Creators began dropping it into short videos, reaction edits and soundboards as a quick signal for tacos, hunger and late-night cravings. Its appeal is its simplicity: one bright note does the work of a whole joke.