The sound is tied to Brazilian television presenter Gilberto Barros, whose loud, theatrical presenting style made his stretched shout of Kasinão easy to lift out of context and share as a meme. It spread through Brazilian social media and messaging groups, where the single word became shorthand for excitement, celebration and over-the-top approval. Because the voice is so distinctive and the delivery is instantly recognisable even without subtitles, creators keep reusing it as a quick burst of hype in edits, streams and reaction clips.