The phrase comes from a Portuguese audio attributed to Brazilian internet personality Ygona, in which the everyday slang word chuca, meaning an intimate wash, is explained without embarrassment. The recording spread mainly through WhatsApp forwards, group chats and Brazilian meme pages, where short out of context audios are reused as reactions. Because the explanation is long and deadpan, editors keep returning to it for cringe humor and shock value, and it remains recognizable from the first words alone to audiences familiar with that WhatsApp meme culture.