The origin of this specific recording is not documented, but the stretched gaaaaay shout belongs to a long tradition of exaggerated reaction clips shared on soundboards and in meme edits. The humor comes from timing and elongation rather than context, so the same clip works over gaming footage, chat screenshots, short skits and reaction compilations. As short-form video grew, editors kept reusing simple one-word shouts like this because they are instantly readable, easy to caption and require no setup for viewers to understand the joke.