With no confirmed single film, show or creator source, this shout has spread purely as a reusable reaction clip on soundboards and in short video edits. The exaggerated stretch on shut up made it easy to recognise and quote, so creators began dropping it over unrelated arguments and monologues as a comic interruption. Its second line broadened its use beyond a simple hush into total disinterest, which helped it persist as a shorthand for being fed up, overwhelmed or completely done listening to someone.