Rhinorocepig

A Rhinorocepig is an unusually ugly, fat, squalid and generally horrible woman. Initially heard used by a certain British IT specialist in Switzerland and rapidly finding popularity, it is normally employed in bars to refer to females who are so thoroughly beyond the pale of what is acceptable to look at, nevermind pick up, even when under the influence of beer goggles that any red-blooded gentleman in the room will inevitably come close to retching rather than even imagine the possibilities inherent in sexual relations with such a beast.

Bears a close relationship to swamp donkey and rhinocopig, although the latter is a more generic application of the same concept.