The line comes from the 1968 film Planet of the Apes, spoken by Charlton Heston as astronaut George Taylor in the final scene. After finding the toppled Statue of Liberty half buried in sand, Taylor realizes the alien world is future Earth. The twist became one of cinema's most quoted endings, and clips of the outburst spread widely online as a reaction sound. Its mix of genuine horror and over the top delivery keeps it useful whenever a reveal feels catastrophic.