Basically, it's the best website in the world. You get to pick a cartoon cat and dress it up. Like a paper doll, only without the paper cuts. (Hint: You have to double click on everything and then scroll up or down to find where your cat went. It's a pretty ghetto website.)
Here are a few examples of what you can make with this website (I made them :D :D :D)
Edit: I got caught at work today playing Dress Up Kitty.