Tony Hawks Pro Skater 2 (I think, I'm not sure anymore) had a create-a-skater, and I came up with the name by just smashing the arrows and x. Polished it a little IIRC.
Have used this same name in way, WAY too many places. It's never taken.
I have a scenario in my head where I'm a defendant in court when they list all the places and all the things I've done behind this username. It never ends well