Online, this sound became strongly associated with the Yippee cat and the autism creature meme, where the cheerful shout matches a simple, excited face. It spread through short edits, reaction posts, and reposts on video platforms, especially in clips built around awkward enthusiasm or ironic happiness. Its staying power comes from how fast and recognizable it is: one brief "yippee" can carry a whole joke. Creators still use it as a clean reaction cue alongside staples like vine boom when a scene needs a lighter, sillier payoff.