The phrase itself is everyday French for asking what someone has just said, and its appeal online comes from that plain, direct meaning rather than any single famous scene. Shared as a short reaction clip, it circulates in meme edits, short videos and comment replies where a creator wants to highlight disbelief without adding a long explanation. Because the line needs no translation to convey surprise, it works across French-speaking audiences and with viewers who simply recognise the tone, keeping it useful as a quick confused reaction sound in fast-paced edits.