The phrase comes from everyday Portuguese swearing, where filho duma puta is a harsh insult roughly meaning son of a bitch, and the pulta spelling is the playful, censored version that spread on soundboards. Clips of people shouting it in an exaggerated way have circulated for years in Brazilian and Portuguese meme edits, gaming lobbies and WhatsApp groups. Its staying power comes from that stretched delivery, even non-Portuguese speakers recognise the tone instantly and reuse it as a universal angry reaction.