From the manufacturer:

We all have a friend like George, who is as cheap as the day is long. In this game, each of the players is having lunch with this "George," with the goal of contributing NOTHING to his lunch tab. Playing is simple:

Players, in turn, choose a question by value/difficulty. Answer the question right - transfer a portion of your contribution to another player (i.e., the value of the question). Answer the question wrong - another players transfers the value of the question to you. The first one to Nothing wins.