I was given the name DistroMan because every computer in the house (there were 7, down to 6 now) had a different distribution of Linux on it.
Before that I was Night Owl (cd radio days) because I worked fulltime nightshift.
Before that was Greyhound because I was a skinny little b*****d in the army and looked quite strange running around with a mortar baseplate strapped to my back. Heavy little buggers.