A disgustingly ugly woman who by virtue of her appearance is guaranteed not to be the mother of any children. One who is so slobberish and vile that her very presence can be sensed by all but the most comatosed individuals who deserve an encounter with such a filthy beast. Usually found in shopping centres, clubs, pubs, zoos and abattoirs. The criteria for what constitutes a mulper can often be relaxed and the term can apply to even a mild ugly woman who might be carrying a few extra kilos, or anyone in between.
Look at that hideous mulper walking down the street at the Fringe.
Nearly succumbed to the advances of a filthy mulper last night . Fuck it was close.
There should be a law against mulpers like that. Enough to put you off your pint.