The phrase comes from a short French spoken clip that circulates online as a standalone reaction sound, detached from any confirmed original video or creator. Its appeal is the everyday wording and the questioning non at the end, which turns a simple complaint about a bad smell into a shared joke listeners instantly understand. French speaking users share it in chats and short form edits, while wider meme audiences use it whenever a scene needs an exaggerated smell reaction without a long explanation or dialogue setup needed at all.