I'm a life-long fan of Sonic the Hedgehog. It started with the games, then the cartoons, and now... back to the early games again - anything post-2001 I don't play. Being the nerd I was, I came up with some unoriginal fan characters about 5 or so years ago, one of them being a green hedgehog named Turbo. The connection with the Sonic universe more or less died, and he just became a character that happened to be drawn in a StH style.
The 'J' has had a bit of history. Originally it had absolutely no meaning at all, other than it had a nice ring to it. Then one on of my Youtube videos, someone made the strange suggestion that I was called Jules, simply because in the video someone was reading a Jules Verne novel. I later decided that Jules was the middle name of Turbo.
On some accounts my username is TurboJUK, with the UK thing being obvious as to what that means. You may find someone called TurboJUSA - that's not me. That's a fan of my videos who keeps asking me to visit him. In Seattle, Washington. Sorry kid, not gonna happen.