there is no explanation....
nah just messin. we were walking around Meijer (which is kinda like Wal-Mart) and walked passed the sporting goods department and seen this hat with this cool ass fish on it but it was the bones. and i said thats kinda a cool looking hat with the fish bones and James said he liked that term fishbone...so from then on, i started calling him Fishbone.
i may have missed some details, but thats more or less the story.