The exact original source of this short clip is not clearly documented, so it circulates mainly as a standalone French joke sound rather than as a quote tied to a well-known film or show. Its appeal comes from the bluntness of the phrase and the childish humour around the word caca, which travels well even for listeners who only partly understand French. On soundboards and in short-form edits it is shared as a quick prank punchline, often passed between friends who enjoy crude, playground-style humour. That simple, repeatable joke is why it keeps appearing in reaction and meme edits.