What's the deal with your nickname? How did you get it? If your nickname is self-explanatory, then tell everyone when you first started using the internet, and what was the first thing that made you say "wow, this isn't just a place for freaks after all?" Was it a website? Was it an email from a long-lost friend? Go on, spill it.
'Jay' is a type of bird, and 'fogel' is German for bird. I often use jbird, which is a nickname I created for myself IRL, but birdsquared is more rarely used by others on the net, hence it was available on gmail (and other sites) without a numerical suffix.