It was a nickname that I got back in high school. Not only is it very similar to my actual name, but it was inspired by the fact that I used to loan out lunch money to my friends. :>
I used to have different usernames for different websites and that got difficult to keep track of. When I signed up to this site, I decided to come up with something universal. Unfortunately, I couldn't think of anything good. "Cash In" was the only thing lingering in my head at the time. So, I said screw it and signed up with it. I'm sure you know the rest of the story.