[1] : WordNet (r) 2.0

fanny
     n 1: 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?" syn: buttocks, nates,
           arse, butt, backside, bum, buns, can, fundament,
           hindquarters, hind end, keister, posterior, prat,
           rear, rear end, rump, stern, seat, tail, tail
          end, tooshie, tush, bottom, behind, derriere,
           ass
     2: external female sex organs; "in england `fanny' is vulgar
        slang for female genitals" syn: female genitalia, female
        genitals, female genital organ
see also:
buttocks nates arse butt backside bum 
buns can fundament hindquarters hind end 
keister posterior prat rear rear end 
rump stern seat tail tail end 
tooshie tush bottom behind derriere 
ass female genitalia female genitals female genital organ 

[2] : Moby Thesaurus II by Grady Ward, 1.0

21 moby thesaurus words for "fanny":
   arse, ass, backside, behind, bottom, bum, can, cheeks, derriere,
   heinie, hind end, keister, posterior, prat, rusty-dusty, seat,
   stern, tail, tuchis, tush, tushy

Fanny >> F Words
Fanny, definition of term: Fanny
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