Nothing interesting... it's just my last name plus the year I was born. It's the first part of my email & easy to remember. I sometimes use hikerchick for a user name on some sites, because I love to hike, but I don't use that much anymore.
My avatar is also pretty boring... just me on a snowshoeing trip in 2013. Actually it is kinda funny - my friend took the photo after we had split about a flask of apricot brandy (you know, to warm up! It was really cold!), and she was taking "glamour shots" of me. That one happened to turn out, we got a good laugh over it.