PerfectMafia...the "Mafia" part came from an older username, Mafia-Maori-Spartan [usually shortened to just MMS], while the "Perfect" came from predictions and going perfect in them.
Um...others I've used are: Dbone5100 & Redskin5100....
Dbone is a nickname from my family because my first name starts with a "D" and I'm skinny like a bone....Redskins are my favorite football team, so yeah....