Try "Jiu Jitsu, flow with the force"
or "May the flow be with you"
or what I plan on getting tatted on me "Flow like water, crash like waves"
"Be like water, drown your partner"
"Like sex with clothes on but you don't have to clean up afterwards"
Then on the back:
"Unless you **** yourself"
I like it. it would be ironic if I wore it being such a huge bastard :D
Cool, reminds me of an idea I had to make some shirts a while ago for some mates.
It would say "How's my kazushi?" with the text curving down so the reader would lean over a little as they read it.