Bucket Fanny' is a derogatory British slang term aimed at women. It is used to describe a loose or slack vaginal opening hence the word "bucket" which has a wide opening; and "fanny" which is a British word for the vagina. The term has increased in popularity in recent years, and is sometimes even used by women.

A women can have "bucket fanny" through child birth, particularly of large babies. It is also often aimed at women deemed to be promiscuous, in that their vaginas would be loose through frequent sexual practice. Sex with a well-endowed man would also be deemed to lead to bucket fanny. These are all myths, however.

Also a "bucket fanny" may be referred to as a "welly top". This similarly derogatory term refers to a contraction of the item of footwear known as a Wellington Boot. The top of a Wellington Boot is regarded as wide and always open like the slang term describes of a woman's stretched vagina.

A man could describe the sensation of sexual intercourse with a Bucket Fanny as similar to "throwing a sausage down a corridor", "putting your leg in a wheelie-bin", or alternatively as 'waving a flag in the Royal Albert Hall'.

Also: Wizard's sleeve, Clown's Pocket, meat cave, giant clam, sloppy pussy, Massive Fishy Gash, King-size Pillow Case (with dead fish in it), Bella Emberg's greasy Boob-Tube, π x fanny², Ultra-High FWR (Fanny to Willy Ratio) "all wallowed out," PHP for Paris Hilton Pussy, chucking a brick through Carol Vorderman's window.

Antonyms: FLAME - abbv. Fanny Like A Mouse's Ear. Also, 'Gnat's Chuff' - She's as tight as a gnat's chuff.