The phrase comes from Brazilian Portuguese internet slang, where meu broder is a playful borrowed form of my brother used between close friends. Clips this short spread mainly as WhatsApp audios and soundboard buttons, shared at night when the joke is most relevant. There is no widely documented original recording or named creator, so its life online is defined by reuse rather than a single source. It remains popular as an instant shorthand for being awake too late and checking who else is in the same situation.