The phrase comes from Brazilian religious language, where sai desse corpo is shouted during dramatic deliverance prayers. Online, it circulates as a short, shareable audio rather than as a song or film quote, and Brazilian meme culture has turned its theatrical delivery into a joke for everyday overreactions. It survives because the wording is short, instantly recognisable and easy to drop into reaction videos, even for viewers who only understand its tone and not every word.