from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Slang The buttocks.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The female genitalia.
- n. The buttocks; arguably the most nearly polite of several euphemisms.
- n. Sex; similar to North American pussy
- n. Mess kettle or cooking pot.
Perhaps from Fanny, a nickname for Frances.(American Heritage® Dictionary of the English Language, Fourth Edition)
Origin unknown (Wiktionary)
The British naval slang sense derives from Fanny Adams. Tins of mutton introduced as rations were not liked by the sailors and were taken by them to contain the butchered remains of Fanny Adams who had been brutally murdered and dismembered. The tins were re-used for eating from and cooking with. (Wiktionary)