a side boob tap. Good game is the act of slapping the ass of the member of the same sex. The New Good Game is a gentle touch of the side boob and can be applied to either sex. More or less it is a legit excuse to touch a chick's boob.
My buddy and I just beat these 2 girls at beer pong, but rather than slapping their ass in attempt to congratulate them for a good effort, and for a quick thrill, we went for gold and gave them the New Good Game.