The phrase comes from Korean, where gwiyeoweo means cute, and eung is a casual way of saying yes. The clip is shared online as a short reaction sound rather than as a line tied to one widely known film, show or game, and its appeal lies in that simplicity. Short-form creators use it to mark a moment they find endearing, while listeners who know even a little Korean can recognise it instantly. Its playful spelling in tags and captions has helped it travel as a cute reaction across different kinds of videos.