I get my name from the deceased cat in Grim Fandango (His memorial is in year 2, in the cat track. He's the only visible cat in the game I think)
I chose it because cats are a lot cooler than dogs. Dogs want too much attention and aren't as lean or mean as felines.
And am I the only person on these forums with a Grim Fandango name that lasted more than 100 posts?