This clip has no verified single source, which is common for soundboard uploads: it appears to be a generic fart effect that users relabelled around Taco Bell because the chain has long been shorthand online for regrettable fast-food choices. Short gross-out effects like this spread through meme soundboards, reaction videos and short-form edits, where a bodily gag needs no setup. It stays in use because the joke is instantly understood and short enough to repeat, while creators wanting a more echoing version often reach for a fart with reverb instead.