The strip poker that I remember hearing about as a teenager, and played as an adult, the rules are pretty simple. Clothing is ante and bets. Usually like items are bet until there are no even pieces of clothing. Shoe for a shoe, jeans for jeans or other bottoms, skirts, shorts, etc... Sometimes a single item can equal a couple items, like a shirt can equal a pair of socks. Each group can call their own rules on value of clothing items.

So it is probably the best thing in strip poker to start by putting on a few extra layers of clothing. The first person who runs out of clothing is the loser.

To play strip poker you can play standard poker hands like five card stud or blackjack but you can also play Omaha hold'em or the very popular Texas hold'em poker. Pretty much there are official rules involving strip poker like any other poker game but it seems to me that it is a lot more fun for consenting adults to play a game of strip poker, provided that it is not too cold in the place you are, and also that you are not in a public place. It seems that the authorities do not much appreciate naked people in public. :)

Someone once told me that Strip Poker is basic poker where the person with the losing hand removes an article of clothing. As the game moves along people with a losing hand continue to remove an article of clothing until the last hand is played.

But here is a site that gives some different instructions; http://poker.about.com/od/strippoker/a/strippoker.htm