about oral sex or fannies? Discuss. I don't think so. The writer of the song insists it's not and gives a good explanation, that it was about a girl he had a crush on who had a peach tree in her yard. http://www.youtube.com/watch?v=VvcohzJvviQ if you'd like to hear it Edit: err, I have no idea whether "fanny" in the fanny theory refers to the butt or the vagina, as the word has a different meaning in British and American usages.