The title スシロー points to Sushiro, a well-known Japanese conveyor-belt sushi chain, but the exact source of this specific 9-second clip is not clear from the available facts. Online, it circulates mainly as a TikTok meme sound, where creators use it as a quick punchline or reveal cue. Sounds like this spread because they are short, easy to recognize, and simple to place on a hard cut. Its continued use comes from that instant meme value rather than a long-form listening appeal.