The clip circulates as a short reaction sound rather than as a line tied to a widely documented film, show or viral video, and its exact original recording is not clearly established. That ambiguity has not slowed its use, because the phrase itself is instantly understood as a response to something odd or out of place. On short-form video and meme edits, it is commonly placed over reveals, fails and strange discoveries, where a two-second burst of disbelief does the work of a longer explanation. Its brevity keeps it easy to reuse across very different clips.