The clip comes from Die Hard With a Vengeance, released in 1995 as the third film in the Die Hard series starring Bruce Willis as John McClane. Short exclamations from action films became popular as isolated reaction sounds online because they capture a clear emotion without needing context. This one circulated on soundboards and in video edits alongside other movie reaction clips, where its brevity made it easy to insert anywhere. It remains in use because disbelief is a universal punchline, and the line works even for viewers who have never seen the film.