The systematic appraisal of a fanny (gash) using a set of predefined, uniform measures including smell, taste, acidity, presence of pubic hair, labia size and level of resemblance to a badly wrapped kebab. One should also comment upon how eager one is to 'smash' it, given the opportunity. Synonymous with 'gashessment'
So I did a fanalysis on Ruth last night and she scored really well- bald as a badger from her clunge to her aintcha, and kebab was well packed, but had to mark her down on the smell as it had the aroma of a rotting salmon carcas. Would still smash the shit out of it again though given the chance, but I'm all out of rufies, so can't see it happening anytime soon