Ratinho is the nickname of Carlos Roberto Massa, host of Programa do Ratinho on SBT, a Brazilian variety show on air since the late 1990s. The programme became known for its noisy studio soundboard, audience reactions and the host's stretched shouts like rapaz, which editors later clipped and shared online. Compilations gathering all the effects in a few seconds spread through Brazilian meme pages and messaging groups, turning a TV cue board into a reusable reaction pack that still signals comic shock today.