JimmySeal
I'll tell you what's missing from the story said:
tattooed down your back is just about the dumbest thing I've ever heard. Do you spend a lot of time shirtless? Why add the extra hassle of having to explain what (you think) the Japanese means, rather than just using English? Then again, why don't you just get the Japanese or English or both printed on a T-shirt and wear that from place to place? It'll be easier for people to see it that way.
If you want a Japanese tattoo that'll make an impression on people, try this one on for size:
僕、読めん
or even better, in Chinese:
我不可讀