What is a Moustache Party?

One day I found myself thinking, "I have a lot of fun at parties. I bet I'd have a lot more fun at parties if I had a moustache! I bet I'd have even more fun at parties if everyone had moustaches! Thus the moustache party idea was born.  Moustache parties have no real rules, I simply throw a party and encourage all the guys to grow a moustache (aptly called a "party moustache") for the party.  

It should be noted, though my idea was thought up all on my own, when trying to register the domian www.moustacheparty.com, I sadly discovered I was not the first to have the idea.