Classics:
-- Kings: Cards are associated with making up rules, assigning drinks, taking drinks, etc. Look it up if you want to know cause I really don't remember.
-- I've Never: Requires at least 4 people, IMO. The more people, the better. You go around the circle and everyone gets a turn to say "I've never (fill in the blank with something dishonest/kinky/nasty)". If someone says something you've done, you drink. If you say something that nobody drinks to, you drink. You can also say something that you HAVE done, but you must drink after you say it. It's a good way to both: a. Get the girls drunk, and b. Find out which girls are dirty. After everyone admits what they've done and drinks, it moves on to the next person to say the next "I've never". Sometimes it can turn into bragging, depending on the people. For example, saying "I've never slept with 3 women at the same time" and then proudly drinking. It's always been fun when I've played.
-- Roxanne: Ridiculous. A 2 person game. One person picks "put on the red light", one person picks "roxanne". Drink when you hear your phrase. Play the song, and try to keep up. Good luck!!
-- What the f**k: A little childish, but gets people hammered. Everyone picks a name ending in f**k, and there is a rhyme involved which passes the responsibility to do the next verse from person to person based on the chosen f**k names. If you screw up the song, you drink and start it over. The start is hard, so the same person usually ends up drinking about 5 times before the game gets going again. You need someone to teach you this one in person.