The substance created as a product of a busy social/active life and a poor sense of vaginal "housekeeping". Discofanny + time left unattended = fannybatter. Resolved with a warm bath, vigorous (yet appropriate) scrubbing action.
I got with XXXXX at the localnightclub, unfortunately upon taking her home, it transpired she had been at a 48 hour rave without shower. her pants were covered in fannybatter.
The lubricating fluid that is secreted, or in the more impressive cases actually squirted, from the vagina prior to, during and after sexual congress.
fannybatter Often found encrusted in the lady's quim after a heavy session of hiding the sausage or drinking from the furry love cup. Often also found liberally coating mattrasses in catholic girls' school dormitories after a heavy session of clamjousting.
Has a delicate aroma similar to kippers or, perhaps, salted anchovies which, as it happens, are the principle ingredient of Gentlemen's Relish.
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).