Little is documented about who first recorded Jme Br, so its history is mainly an online one built around sharing short French reaction clips. The phrase c'est pas de la br gives it a specific, local flavour that stands out from English meme sounds, and that contrast helped it circulate as a soundboard staple. It survives because the delivery is instantly understandable in context: a blunt no, timed for comedy. Creators keep reusing it in edits, chats and compilations where a fast correction is funnier than a long explanation.