There is no widely confirmed single source for this short don't be rude clip, so it is best understood as a general reaction sound that circulates on soundboards and social video. Short scolding phrases like this travel well because they are instantly understandable without context, and creators reuse them to police jokes, arguments and over-the-top moments in edits. Its brevity makes it easy to drop into memes, streams and chat replies, which is why the same line keeps reappearing whenever someone needs a quick, humorous correction.