Nos Jours Heureux is a 2006 French comedy by Eric Toledano and Olivier Nakache about the staff and children at a chaotic summer holiday camp. The film became a cult favourite in France for its quotable counsellor arguments and nostalgic colo atmosphere. Petit con is one of its many snapped insults that fans clipped and shared on French soundboards and messaging apps. The phrase itself is everyday French slang, and the camp setting keeps it sounding affectionate rather than harsh, helping the clip survive as a reusable teasing reaction.