Rage baby is a short reaction clip that circulates online as a ready-made tantrum sound for short-form video, memes and livestreams. Rather than being tied to one well-known scene, it works as a general-purpose expression of frustration, and creators reuse it because the contrast between a small child and outsized anger is instantly funny. It is most often dropped into gaming fails, prank reactions and comedy edits, where it signals that someone has completely lost patience. Its staying power comes from that simple, relatable joke, which needs no context to land.