The exact origin of this clip is unclear, but it fits a long-running internet style of exaggerated bathroom sound effects used in meme edits and prank audio. Sounds like this spread through soundboards, short-form videos and group chats because the joke is immediate and easy to understand without context. It stays popular for the same reason as fart with reverb and other goofy ahh sounds: lowbrow shock humor still gets fast reactions when the timing is right.