The phrase itself is everyday French, and online the clip circulates mainly as a short reaction sound rather than a quote tied to a known film or show. Its exact recording source is unclear, so its popularity comes from use, not origin. Short French phrases travel well on soundboards because even non French speakers understand the calm tone instantly. People share it in chats, edits and streams as shorthand for staying relaxed on purpose, turning a simple statement into a recurring joke about refusing to panic.