No single viral source is firmly attached to this short phrase, so it circulates mainly as a reusable reaction clip rather than a quote from a known show or film. Its appeal is in its simplicity: the words are instantly understood, the delivery is firm enough to feel funny, and the length fits neatly at the end of a short video. Creators use it to signal bedtime, to mock staying up too late, or to playfully shut down a conversation that has gone on long enough. That everyday relatability keeps it in rotation across memes and edits.