How To Play:
The 4 people make teams of 2 and sit next to each other with the oppossing team on the other side of the   table. Between you and the player across from you is a coffee cup and between the 2 coffee cups is the solo cup. Each coffee cup is filled with at least one shot worth of beer. Players across from each other tap quarters and try to make it in their coffee cup. If you make it the person you're matching up against has to drink the beer in the cup, but if your team mate makes his quarter in before the other team is done drinking the beer from the cup they have to drink from the middle solo cup. The amount in the solo cup is determined by how much of an ass you are so fill it up at will. Every time you make a shot in a coffee cup it counts as one point and games are played to 15 or whatever you want the score to be...even though the higher the score the better.

Credit: Burkus