The phrase hoje vai dar merda is Brazilian Portuguese slang for a day that is heading for trouble, and this clip is credited to Mr. Catra, a prominent voice in Brazilian funk carioca. Short voice clips like this spread widely through Brazilian meme pages, social video edits and WhatsApp groups, where a familiar voice can set up a joke in seconds. Because the warning is broad and instantly understood by Portuguese speakers, editors keep reusing it for fails, unlucky days and plans that are clearly about to backfire.