Ratinho is the stage name of Carlos Massa, the longtime host of Programa do Ratinho on Brazil's SBT network, whose loud, chaotic presenting style made him a fixture of Brazilian internet humor. The stretched-out shout of his name became a classic soundboard meme, passed around in WhatsApp audio chains, gaming lobbies and stream highlight edits as a hype shout. The exact recording behind this clip is unclear, but the format is well established: a long, theatrical yell that signals something absurd is happening, much like the cavalo clip that circulates in the same Brazilian meme circles.