Rock never loses!
Many disputes between ultimate players are settled by Roshambo, more generally known as "Rock-Paper-Scissors". Each player 'throws' either rock (a closed fist), paper (a flat palm, fingers outstretched), or scissors (two fingers out). Rock beats scissors, Scissors beats Paper, and Paper beats rock. The formal lead-in to the throw may be composed of a simple '1-2-shoot' or a more extended '1-2-3-shoot'. Most ultimate players choose the former for its efficiency.
Multi-player rosham:
A group of more than 2 people may also rosham if necessary (for instance, to determine who has to go acquire another round of beers). This can be accomplished in multiple ways, some better for smaller groups and some better for larger ones.
In the Every man for himself method, the entire group will shoot at once. If the group's throws consist only of two of the three outcomes, then the group who made the superior throw has won and the group who has made the inferior throw has lost. If the throws consist of only one throw, or all of them, then there is no result and you must throw again. Often the sub-groups that are formed will re-rosham amongst themselves to determine an ultimate winner and/or loser. Example: Dmo, Ethan, Jannon, Pug, and Allison are throwing to determine who gets the last can of Sparks. Dmo and Pug throw rock, Ethan throws scissors, and Jannon and Allison throw paper. Because all throws are represented, there is no winner, and the group throws again. Dmo, Ethan, and Jannon throw rock, and Pug and Allison throw scissors. This time Dmo, Ethan, and Jannon have won and Pug and Allison have lost. In the next round. Dmo throws paper. Ethan and Jannon throw rock and now may watch as Dmo enjoys his cold and delicious Sparks (unless, of course, Pug has absconded with the Sparks and shotgunned it). This method is best suited for groups smaller than 6 or so, for obvious reasons, but it is surprisingly possible to obtain a valid result even with large groups.
In the Two duels method, the group stands in a circle and each player throws with both hands at once, comparing results only with his nearest neighbors. If a players left hand loses to his left neighbor and his right hand loses to his right neighbor at the same time, he is out. Play continues until heads up, at which point the two remaining contenders may either continue the two-hand method or simply duel it out in the standard one-hand style. This method works just as well with a very large group, though it is best suited for determining only a single winner.
Special Throws:
In addition to the normal throws of rock, paper, and scissors, you may also throw fire or piss on rare occasions.
Alternate Versions:
Cat-Tinfoil-Microwave (C>T>M>C)
Bear-Ninja-Cowboy (B>N>C>B)