the back fanny is slang for a womans anus..
she is gorgeous,i'd like to make love to her back fanny all night long,
our american friends should be aware in the uk a fanny = pussy/vagina
by dave November 25, 2004
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this is a person who is acting like an idiot, maybe they are being a pain in the arse. this is never a compliment and should only be used as a last resort in an arguement
floz dont be such a glass back fanny and do as i say
by David Alderson July 10, 2005
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A Female that has her vagina positioned further back towards her bum. These females generally have the sexiest body. Furthermore these females are the best to have Doggy Style sex with.
Kam: Oh my god, check that girl out!

Carl: That's a Arch Back Fanny Girl right there!
by ArchBackFannyGirlLover July 15, 2011
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Something composed or performed quickly and without detailed analysis or research.

Made popular in Danish commodity trading companies by Peter Fedders.
Just a quick back of the fanny pack calculation shows that we are in the money
by majonese December 19, 2019
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name to someone who has pubic fanny hair on their backs.
by pervysmervy November 26, 2021
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