This clip circulates as a user-uploaded reaction sound rather than a line from a known film, show or viral video, so its exact recording source is undocumented. Like many short vocal outbursts on soundboard sites, it survives because the phrase is universally useful: two words that instantly signal disbelief. Editors grab it for memes, gaming clips and commentary videos where a deadpan callout works better than a long rant. Its slightly slurred, meme-style spelling helped it spread as a searchable reaction tag.