Where by a female is too fat to wipe their arse in the conventional manner e.g. front to back. Therefore they have to wipe from the back to the front, leaving faecal residue in the minge, hence Shitty Minge.
A fat persons arms are too short, in relation to the circumference of their arse, to wipe their arse normally leading to them doing it through their legs and thus creating a Shitty Minge/Pussy/Cunt
by Joe Newbold April 27, 2007