This kind of audience reaction has long been a staple of television and live entertainment, where a crowd groan instantly signals that an act, answer or performance has missed the mark. Online, short versions of the sound became a handy shorthand for creators, who use it to punctuate fails, awkward moments and disappointing outcomes without needing any dialogue. Its appeal endures because the reaction is instantly recognisable, universally understood and easy to drop into almost any video, stream or meme format.