1. An epithet reserved for a real around-getting cunt-diggity-wad when neither cunt nor slut will suffice. 2. A more obscure yet increasing usage has found "slunt" to refer to a particularly sloppy vag, though it is not unreasonable to combine this usage with the more common application, semenfully. 3. To engage in the act of being a slunt.
Wow, she goes to St. Olaf, what a slunt.
I think that slunt has rabies, it's frothing at the mouth!