Ratinho is the stage name of Carlos Massa, a Brazilian television presenter known for a loud, expressive presenting style that has made him a recurring figure in Brazilian internet humour. Short clips of his reactions are widely shared as reaction sounds, especially in Portuguese-language videos, memes and messaging groups, where a single exaggerated shout can stand in for surprise, disbelief or mock drama. It sits alongside other Ratinho lines such as Ai que burro, da 0 pra ele, and this version stretches the name itself into the joke, making it a quick, recognisable punchline rather than a longer audio sample.