This game is basically a two man best ball with an unusual twist. The goal of this game is to have the lowest score for 18 holes of golf. Your score is determined by taking you and your partner's best ball score and subtracting the number of beers the two of you drank throughout the round.
The average for my team is usually between 25 and 30 beers over a 3 and 1/2 to 4 hour period. The highest beer total I've ever had was 40 (22 for myself 18 for my partner). However I could not finish the last 2 holes of the round.