This game is called Mexicali or (21).
You need 2 dice, a small plastic cup you can't see through
and 2 - 5 + people to play.
1. Everyone at the table has their own drink.
2. The object is to shake the dice in the cup, slam it on the table, lift it up and take a peek at the dice (don't let anyone else see them) and then announce what you have.
3.
a) If your roll does not match or beat the previous roll then you must drink.
b) You may bluff what you rolled in order to avoid drinking. However, the last person to roll before you has the ability to call your bluff.
If done successfully, you must drink. If they call your bluff and lose (ie. you really did beat the last score) then that person must drink.
Play then moves on to the next person
4. Rolls are based on the two digit number they form when placed side by side (ex. a 3 and a 4 would be "43") or if you throw doubles the value is one die times a hundred (ex. double 2 would cound as "200").
Special Rules
There are also some other special rolls that affect the game:
"21" (a 2 and a 1) is called a "Mexicali" and beats all other rolls (including double 6, or "600"). When you hit (21) you shout out Mexicali & you get to make a rule at this point too. I play anything goes.So you can make your own twist on the rule like no cursing, penilty being a drink per F-Bomb or curse word. Another good rule is to make everyone
have to flip the cup "1-3 flips" before slamming it down to look at the roll.
"31" is a "reverse" and play goes back the other way around the table.
"32" is a "social" and everybody drinks.
"Reverse" and "social" both cancel out the previous roll so you don't have to worry about beating the previous guy's score. If you are caught bluffing a Mexicali you have to down the whole drink.
To sum:
2-1 "21" Mexicali - Make a rule & Beats all.
3-1 "31" Reverse - Rotates play.
3-2 "32" Social - Everybody drinks.
4-1 "41"
4-2 "42"
4-3 "43"
4-5 "45"
5-1 "51"
5-2 "52"
5-3 "53"
5-4 "54"
6-1 "61"
6-2 "62"
6-3 "63"
6-4 "64"
6-5 "65"
1-1 "100"
2-2 "200"
3-3 "300"
4-4 "400"
5-5 "500"
6-6 "600"
I spent many wasted nights playing this game in my younger years,
making each other drink till we passed out. Good times, Enjoy