I've gone by GriffinLancer for so long, It's almost natural. That said- I think it's time to change it. Though it's not really a 'new' username- It's one I've had since I was 12. Funny story with it.
A friend of mine offered to help me make an e-mail account in 2002. I was just about to get a computer for my birthday, and my friend decided to set my account up in science class. We got on hotmail, I wanted something unique, and as he was typing "Yo Momma" as a joke, the term 'mothman47' popped up. I thought that was quite cool. I picked that one, and I've used it ever since.
Funny bit of trivia- I cannot meet another mothman moniker on the internet. It's like meeting a Doppelganger. One of us must die.
I am THE REAL one.
As for the 47? Silver Bridge.