The line comes from Willy Wonka and the Chocolate Factory, the 1971 film in which Gene Wilder's Wonka delivers it to a disappointed visitor after a tour goes wrong. Clipped out of context, the short denial became a reusable reaction sound on video platforms and meme pages, where its theatrical delivery made it funnier than a plain no. It has stayed in use because the joke is instantly clear even without the film: someone wanted something, and they are getting nothing at all.