The phrase means psychopath alert in French, and the short clip has circulated as a reaction sound on French-speaking social media and meme soundboards. Creators use it as a quick audio label for behaviour that looks obsessive, creepy or dangerously strange, especially in short comedy edits, pranks and reaction videos. Its appeal comes from the contrast between the serious warning and the playful context, which lets a creator call out a red flag without a long explanation. That simple, reusable joke has kept it in rotation for French meme edits and dubbed reaction clips.