I saw this on another site and it was halarious. This is 100% copied from there:
For all you that don't know how this game works, here it is.
Post 2 words only....that will make part of a flowing sentence, click submit/post reply and you'll be able to see prior "two word posts" by your fellow members, simply add your words and wait for the next member to come along and add his/hers. Sometimes the words may or may not make sense but thats what makes it fun.
Keep it clean in accordance with policy, guys and gals, it's much funnier and the family can enjoy it too.