Priminho favorito is a Portuguese phrase meaning favourite little cousin, and the clip circulates online as a short voice meme rather than as part of a widely documented film, song, or television scene. Its exact original recording is not clearly credited in public listings, so its popularity comes mainly from sharing, remixing, and reuse in short-form videos and messaging edits. That informal spread fits the humour: the phrase is instantly recognisable to Brazilian Portuguese speakers, easy to drop into a personal joke, and still fresh enough to feel like an inside reference between friends and family.