Mark Goldbridge is the presenter behind The United Stand, a Manchester United fan channel known for live watchalongs that regularly clip his most heated reactions. Short excerpts from those streams spread widely on social media, turning his frustrated outbursts into standalone reaction sounds used far beyond football. This particular what are you doing clip follows that pattern, shared as a quick way to express incredulity at a mistake. Its popularity comes from the delivery rather than the words alone, which are instantly recognisable to regular viewers.