The phrase comes from Spanish-language slang, where pana means a close friend and falso marks someone as fake, so together it works as a short insult for disloyal friends. Short voice clips like this circulate widely as WhatsApp audios and meme sounds, where a two-second line is easier to reuse than a longer rant. Its appeal is its directness: listeners do not need much context to understand that someone is being called out. That makes it a handy reaction sound for creators commenting on gossip, betrayal and everyday drama.