Guimarlu is one of those mystery clips that surfaced on user-run soundboards without a documented origin, and it stuck around anyway because the gag works on its own. Editors pass it along in prank compilations and meme edits, where it functions much like a shocked sound, punctuating the moment a joke turns. The name itself has become part of the bit, which keeps searchers typing it exactly as they heard it. Still an underground pick rather than a mainstream meme, it rewards creators hunting for a fresher punchline.