Who's The Biggest Pervert Card Game the popular adult party game is now a drinking game! Who is the Biggest Pervert? is a drinking game where players answer questions about naughty things they have done in order to determine which one of them is the Biggest Pervert! Players take turns asking the group questions. Anyone who has done the perverse act admits it by taking a drink. If no one drinks, the player drawing the card drinks double. Players can easily enter and exit the game, making Who is the Biggest Pervert? one of the most flexible party games in the world. Adult games, playing cards. Item Code: BG.C103. Who's The Biggest Pervert Card Game from Kheper Games. Kheper Games is based in Seattle, Washington.