Said to someone apologizing who is only doing so to put on a show for the public, rather than because they genuinely regret their actions.
Original coined by the Youtube channel "Observe" when referring to Jeffree Star, who made a public apology whilst sitting pretentiously on a golden couch, showing off his wealth to a large audience.
Sure, I'll believe him when he gets off his golden couch.
Oh, you must be so sorry, sitting on that golden couch of yours.