Sorry! I thought you were from the UK. Here, (US) fanny means your rearend, aka ass, butt, etc. However,the meaning in the UK, I've been told by some Scottish girls who came here to live for a while, is similar (the same?) as cunt. Apparently American boys have been known to get in trouble in the UK by suggesting someone "get her fanny out of that chair" or by tellin a girl she has "a nice fanny". It's even a somewhat old-fashioned but still fairly common girl's name here. :)