LOL!!! We have a lot of Japanese-American friends whom we have to tell about that.
I love Japanese translations of English. One hysterical one is from "Japanese Rules of the Road"--"Give big space to the festive dog who make sport in the roadway. Avoid entanglement of dog with your wheelspokes."
Dave Barry also has a bunch in his book about his trip to Japan. He mentions a sweet little Japanese girl who's innocently wearing a shirt that says "King F@#ker Chicken". Haven't you ever wondered what all those Asian-symbol shirts that Americans wear really say?