The line comes from Willy Wonka and the Chocolate Factory (1971), where Gene Wilder plays the eccentric chocolatier Willy Wonka. In the film, Wonka uses the polite farewell to dismiss Charlie's grandfather after a dispute over the factory tour, and the clipped delivery turned it into a lasting meme. It spread through reaction videos, edits and soundboards, where it became shorthand for ending an argument without shouting. Its staying power comes from that contrast between courtesy and finality, which still fits online debates, gaming fails and comedy sketches.