Fim do mundo is Portuguese for end of the world, and the phrase has become a reusable online reaction in Brazil and beyond for moments framed as total collapse. Shared as a short soundboard clip, it travels through meme edits, group chats and short videos where creators need instant, exaggerated alarm without any setup. Its appeal rests on how clearly the panic translates even for viewers who do not speak Portuguese, turning minor setbacks, bad news and chaotic reveals into the same dramatic joke.