This sound is generally used online as a cartoon shorthand for something smelling bad, gross, or unpleasant. The clip is a short horn or foghorn-style effect rather than a spoken line, which makes it easy to drop into memes, reaction edits, and prank videos. It appears in many user-made soundboards under names like stink sound effect or foghorn sound effect. Its staying power comes from how quickly it communicates the joke, similar to other exaggerated meme cues such as a Fart or an air horn.