Seu Madruga is the Brazilian name for Don Ramón, the unemployed neighbour played by Ramón Valdés in the Mexican sitcom El Chavo del Ocho, which became a lasting hit in Brazil under the title Chaves. His constant complaints, sarcastic put-downs and exasperated reactions made him a favourite for Brazilian meme pages and short-form video. Clips of his disapproval are now reused as a quick reaction sound in WhatsApp chats, TikTok edits and YouTube memes, because viewers instantly recognise the character and the judgement behind his voice.