The sound comes from the bell chime used in Taco Bell television and online advertising, where a single toll acted as the brand's audio logo. Clips of that toll were isolated and shared on soundboards and in meme edits in the 2010s and 2020s, spreading on YouTube, TikTok and Discord. Like the vine boom sound, it became shorthand for a dramatic or ironic moment. Its recognisable low ring survives because it needs no setup, works over any image, and instantly signals a punchline is finished.