The line comes from Harry Potter and the Deathly Hallows – Part 2, released in 2011, during the Battle of Hogwarts. Ralph Fiennes as Lord Voldemort believes Harry has died in the Forbidden Forest and announces it to crush the remaining resistance, while Hagrid carries Harry toward the castle. Online, the clip was lifted from that scene and reused as a soundboard staple for fake-out endings and overdramatic defeats. Its mix of genuine menace and theatrical boasting keeps it recognizable far beyond the film.