The exact origin of this Diego clip is not widely documented, so it is best known through its life as a shareable reaction sound online. Short voice reactions like this spread because one line can cover surprise, sarcasm and genuine disbelief without needing context. Creators place it alongside other quick reaction staples such as oh my god, wow moments in compilations and edits. Its appeal is its timing: it is long enough to register as a real response, but short enough to reuse repeatedly without slowing a fast meme edit down.