From the publishers website: It's a sister-f@#%&*n' redneck-bluffin' hootin'-hollerin' good time! Players take turns braggin' about their sisters. If you don't think someone's boast sounds convincing, you can f@#%* their sister to make sure! Players have a hand of cards with different descriptors such as "...aint got no teeth" and "...can suck the chrome offa trailer hitch!" The starting player picks a saying and begins with "My sister...aint got no teeth." Each player in succession must repeat the previous players statements, then add one of their own: "My sister aint got no teeh and can suck the chrome offa trailer hitch." Play continues until someone calls "I'll f@#%* your sister!" at which point the last player to add to the chain must reveal cards from his hand that match each statement in the chain. Whoever wins the challenge discards a random card from their hand, and play continues. The first person to discard their hand wins!