The phrase is Portuguese for everyone has gone crazy, and its appeal online comes from how instantly readable the emotion is, even for listeners who speak little Portuguese. Short reaction clips like this travel well on messaging apps and social video, where a single expressive line can replace a longer explanation. Creators tend to reuse it for moments that feel chaotic, exaggerated or impossible to believe, which keeps it useful long after any single trend fades. Its brevity is part of the joke, because the verdict arrives before the viewer has time to argue with it.