My name is actually a total chance. I got the internet when I was about 5 and started playing Runescape as "travola" (being named Travis). On other sites, I started calling myself travolaonrunescape. Typing that every time I logged in somewhere was a real pain.
I decided to branch out into the world of AIM (AOL Instant Messaging). Piss people off without the need of a character, you see. Being tired of travolaonrunescape giving me carpal tunnel, I went for something even longer. Hey, I'm 6. ...... Shut up. Anyway, I typed in something like
Oo oO Oo oO ZzZzZzZzZzZzZzZzZ OOOOOOOOOOOOO
Now, that probably looks like just a bunch of Os and Zs. I based it off the "internet smilie face" thingies O.o o.O and O.O with ZzZzZzZzZ as snoring. Was supposed to be some guy like, "Hmmm. Hmm. Nope, nothing. *sleep* *REALLY AWAKE!*"
Being somewhere around a googleplex characters long, AIM rejected it and gave the old list of "Hey retard, pick one of these." Right in the middle was OOZ662. And hence OOZ (known as Ozz to the AHers that can't read) was born.
Ahhh, the mind of a kindergartener.