The sound comes from I Now Pronounce You Chuck and Larry, the 2007 buddy comedy starring Adam Sandler and Kevin James as two New York firefighters who pretend to be a married couple to secure domestic-partner benefits. The film's broad, physical humour made many of its short vocal reactions easy to lift for online clips, and this brief hoo has survived mainly as a compact reaction sound rather than as a quoted line. Creators reuse it because it needs no setup, fits a one-second gap in a meme edit, and instantly signals playful surprise.