Who's "Chuk"?

Ok, so as you now have realized I call my kids by their "blog" name when I post.
Well the other day we were going through past posts and I would read to my boys what I had posted about them. As I read about my youngest, aka Chunk he asked me "who is 'Chuk' mommy? I told him that was his name on mommys computer to which he said,"no, I not 'Chuk' I be cowboy ok mommy"?
As cute as it was I have to keep Chunk b/c he has been and will always be my little Chunky Monkey!