the part of an animal that corresponds to the human buttocks
fleshy hindquarters; behind the loin and above the round
the fleshy part of the human body that you sit on
"he deserves a good kick in the butt"
"are you going to sit on your fanny and do nothing?"
The hindquarters of a four-legged mammal, not including its legs
To turn one's back on, to show one's (clothed) backside to, as a sign of disrespect.
A surname.