The chime comes from Taco Bell, the American fast food chain founded in California in 1962 and named for founder Glen Bell. Its bell logo has long closed television commercials with this single toll, making it instantly recognisable even without any words or music. Online, creators lifted the isolated bong from ads and began using it as a standalone meme sound on TikTok, YouTube and soundboards. Because everyone knows the brand, one hit immediately signals food, cravings and an over-the-top dramatic ending.