it couldn't be mason, that's for sure.
I was playing PS3 one day and needed to choose an avatar. So i chose this hippo one that is now part of my icon because i thought it looked funny. Then as a gamertag my roommate at the time (NS name: Blake.B) and I came up with "HippoFangers".
So hippofangers evolved to RainbowPotamus on NS, and then to TechnoPotamus a bit after that.