The phrase is French for 'that's Olivier again,' and the clip circulates mainly as a shareable soundboard reaction rather than as a widely documented quote from a film or show. Its humour comes from the familiarity of the situation, blaming or teasing a specific person named Olivier whenever he reappears. French-speaking users pass it around in group chats and short edits, and it also works generically for anyone who keeps doing the same thing, which helps the short line stay useful beyond its original circle.