En fait non is a French expression meaning actually no, and this clip circulates online as a compact reaction sound rather than as a line tied to a widely documented film, show or public figure. Its appeal comes from the way the two-part phrasing works in conversation: en fait sets up a correction, while the final non delivers it without debate. French-speaking creators use it in short videos, streams and meme edits to answer a claim, reject a suggestion or end an argument quickly. Its tone alone makes the meaning clear in captioned reaction edits.