The exact origin of the Au Mosu Atikanu clip is unclear, but that has not stopped it spreading across meme soundboards, where short shouted clips like the Japanese YOOOO sound and the Goofy Yell earn their place purely on energy. Its sub-two-second length makes it perfect for quick edits, reaction posts and prank compilations, and the gibberish delivery means it works in any language. Fans keep passing it around because it is endlessly reusable: one loud, silly shout that fits almost any joke.