Primeiramente fds circulates as Brazilian internet slang, pairing the formal word for 'firstly' with a shortened, vulgar dismissal that is widely understood in Portuguese-speaking meme culture. It is shared as a short voice clip for reaction videos, social posts and WhatsApp audios, where its appeal lies in the sudden switch from polite framing to complete indifference. Because the phrase is short, punchy and easy to drop into almost any argument or fail moment, it keeps resurfacing in new edits long after its first online appearances.