Although the exact original recording behind this clip is not identified in the available information, the phrase itself is French internet slang for telling someone to go to sleep as a way of shutting down a conversation. Short, quotable voice lines like this travel well on meme pages and soundboards because they can be dropped into almost any argument without translation notes. It is now used mainly as one of many dismissive reaction clips, valued less for where it came from than for how instantly it ends a joke, a rant, or an unwanted debate.