The exact source of this short clip is not clearly documented, but its name points to French online humour, where nounours means teddy bear and mdr is shorthand for laughing out loud. That combination has made it a handy reaction sound in French-language meme edits, short videos and chat shares, where a cute, laughing bear voice can soften a joke without needing a translation. Its short length and instantly recognisable laugh help it keep circulating as a light, affectionate punchline for silly, wholesome or slightly awkward moments.