The phrase translates directly from Portuguese as a horse with three legs, and its appeal online comes from that simple, visual absurdity rather than any wider story or famous source. Shared as a short, easily reused clip, it fits the fast pace of meme and reaction videos, where a single odd line can carry a whole joke without explanation. Because listeners do not need much context to picture the animal, it works across Portuguese-speaking audiences and for viewers who simply enjoy surreal humour, keeping it useful long after its first circulation.