Play Scrabble as normal. After each round add up everbody's points, the players with the least points must take a sip of beer for each point difference between themselves and the person with the most points. Repeat. Enjoy the arguments for admission of nonsensical words.
No, it's not cumulative, otherwise death rather than hilarity would ensue.*
*do not play with hard Alcohol unless you enjoy being poisoned
—Aren't there supposed to be only seven tiles in each player's rack? —ss