Mine was from when I was at a job where I had a lot of downtime. I decided to get this co-worker I couldn't stand on American Idol (he was a bad singer, but obnoxious about how good he was - instead of doing the work he was supposed to he would photocopy music all day, call his friends, then ask for overtime to finish what he was supposed to do all day. He would sing whenever the bosses were gone and talk about his 'training' ad nauseum). I was thinking, 'what would be an obnoxious and long name to use in trying to get this guy out there' and came up with glitternerfball for some reason. I did get him hooked up with a group that was camped out and had a hotel, gave him horrible advice (go with the extra make-up, they're looking for someone EDGIER this year, the more like KISS you look the better ) and he did get a call-back, so was out of the office for a few days. Sadly, he did not make it to Paula and Simon or he would have been in the 'bad audition' segment - and out of the office a lot longer.
BUT, in the end, I kind of thought glitternerfball had a funky ring to it, and when I signed up for this board - thought it would be good. This is the only place where that is my moniker.