No specific film, show or creator is reliably tied to this clip, so it is best understood as an internet reaction sound rather than a quote from a known scene. The phrase itself is common online slang for outright disbelief, and short voice clips like this travel easily because they can be dropped over almost any surprising moment. Its appeal comes from that flexibility: the same few words work for fails, scams, bad decisions and unexpected reveals, which has kept it in rotation in memes, edits and reaction videos.