This clip is mainly known online as a short German meme reaction sound rather than for a clearly documented mainstream source. It circulates on soundboards, short video edits and chat memes because the phrase is instantly readable even for non-German speakers through tone alone. Its staying power comes from how flexible it is: creators use it for disbelief, mock scolding and sarcastic reactions in the same way they might use bruh or a buzzer, but with a more specific spoken attitude.