Hey, @simplymike.
I used to do the four word this, five word that twitter challenges all the time. :) Some of them can be pretty fun and I do like the challenge. In all seriousness, though, the problem comes when I'm trying to have an actual conversation.
I actually 'stole' the idea from Twitter. I was looking for fun and easy ssocial games and came across such a 4 word hashtag game. They are indeed very funny. But since it was unknown to me, I assumed many others wouldn't know the game either, so I decided to start with a simple one.
You just gave me an idea for a next contest: who can have the longest conversation, using maximum 5 or 6 words in each reply. I bet you wouldn't win that one, lol