t0shin = Japanese Fighting God... pronounced toh-sheen. I have the 0 as my o, because I hated hearing it pronounced tah-shin.
Back in the old days of college and beer, I played alot of Tekken, and at Tekken 3's release, the Japanese version had Toshin as the main boss (changed to Ogre for the U.S. release). Since I thought I was some kind of tough guy back then (see: beer) and I efficiently destroyed my friends at Tekken, it became all of my PC game avatar's names. I'm not Japanese (I'm 6'7" with blue eyes) but I am fascinated by the Japanese culture.