I played it a few times nearly 2 decades ago and I'm not all too clear about the rules we used. When looking it up, I got these rules. I do remember we had things like "Roll a 5, the player to your left drinks" and "Roll a 6, player to right drinks"
Threeman rules:
Play with 2 dice and at least 2 people. Drinking is done in sips.
- If someone rolls the combination 1 & 2 that person becomes the threeman. Every time one of the 2 dice shows a 3, that person has to drink no matter who's turn it is. If someone else rolls a 1 & 2 they are now the threeman.
- Double: Any time a double is rolled, that person can choose how to divide that number of sips among the players. Let's say you roll 2 fives, then you can divide 5 sips among the others however you want. Even having 1 person do all 5.
- If the 2 dice total to 8: make up a rule. Your imagination is the limit. We'd usually do things like "spin around before taking a sip" or "if 7 is the total, players on either side have to take a sip". If a player breaks or forgets a rule, they have to take a sip.
- If the 2 dice total to 11: You can abolish one of the made up rules
- Every time a player is handed the dice, they have to take a sip