The phrase comes from Brazilian internet slang, where hang loose refers to the shaka hand gesture and de pé simply means standing up. Shouting it twice and dragging out the ending turned the pose into a shareable joke on soundboards and short videos. The clip spread as a reaction audio rather than a song or show quote, passed around for moments that deserved absurd levels of hype. Its appeal stays in the contrast between an ordinary gesture and a stadium level celebration, making it reusable across sports, gaming and everyday fails turned into wins.