Ok, the "fanny" phrase. LOL
In America, "fanny" is a way to refer to one's bottom. It's not unusal to hear a mother say to a child "if you don't behave, I'm going to spank your fanny!"
In the UK (and other countries) fanny is a slang term for........hmmmmmm........a certian part of a woman's body, to quote a song "it's another way to call a cat or kitty".