No confirmed source has been attached to this snippet, which circulates online as a standalone French voice clip a little over a second long. "Regardez" translates simply as "look" or "watch", and that meaning is the whole joke: French-speaking creators use it as a pointing hand in audio form, a command to stop scrolling and witness whatever comes next. It travels the way most micro-trend sounds do, passed from edit to edit rather than from a show or song, and its staying power comes from being the shortest possible way to say "check this out".