It is a pack of cards that all have different fourth round rules. Like getting behind a couch and doing hand puppets. Or doing charades in pairs, but one person has to pose the other person. They're hilarious and weird and perfect for when you're having such a good time that you want a game to go on for just a little bit longer. It was a Kickstarter exclusive (at least initially) for the "Monikers: The Shut Up & Sit Down Nonsense Box" campaign.