I'm almost certain I've read Lost In Place: Growing Up Absurd In Suburbia by Mark Salzman and forgotten about it. Fortunately, the book was brought to mind because it made the news when the high school in Brookfield, Connecticut removed it from its One Book One School program because "the language is filthy."
The title is what stands out in my mind. I was interested in the "growing up absurd in suburbia" part. I remember nothing about the author being interested in Zen and martial arts. Now I want to read the book again because I'm interested in those things, too. And, of course, the filthy language is a real draw, too.
I'm off to the library tomorrow to get this thing. This makes me wonder how many books that are banned by schools are later read by adults who would never have heard of them.
Bizarrely enough, I think I've read one of Salzman's other books, too, The Soloist. A School Library Journal review at Amazon describes it as YA, by the way.