The exact origin of this short spoken line is not documented, so its history is mainly online rather than tied to a confirmed film or show. It spread as a reusable reaction sound on meme soundboards and in short video edits, where creators pair the confused question with screenshots, chat logs and clips of people changing their story. Its appeal is the plain wording, which works without context and fits many situations, helping it stay in rotation alongside other brief callout and disbelief sounds used for contradiction jokes.