Objective
Get rid of your cards.
Ranks
Suits don't matter. Aces high.
Use two decks if people>7. Doesn't matter if people start with diff. number of cards.
Rules
First person starts with i.e. two 7s. Following person has to either pass, or play a higher set i.e. two Jacks. After a full round of passing, played cards are turned over and person to left starts play again.
Do not have to play, can pass then play etc.
P&A
First person to get rid of cards is President, second is Vice President. Last two are Vice Arsehole and Arsehole.
On next round, Arsehole gives two highest ranking cards to Pres, Pres gives two worst (his choice) to arsehole. Same for vice pres + vice arse, except one card.
Cheating
Strongly encouraged. In particular, hiding other cards below the correct top card (i.e. putting down 3,4,5,5 instead of 5,5,5,5) works quite well.