A mix between the words cunt and slut. Oftenly used when referring to an ex-girlfriend. It's usually used when a girlfriend cheats on their boyfriend and all his friends call her a slunt. There is no positive way to use this word.
Used to describe a woman whose behavior is so heinous, the mere use of slut or cunt is inadequate. Covers a variety of horrid behavior, notably that presented by characters in shows like "Desperate Housewives".
Usage varies. Typically, when one learns of a woman who has killed her husband or children, or plans to, one reacts simply by saying "slunt!" If sex is involved, the appelation is upgraded to "that fucking slunt!"
a person who is a slut and a cunt at the same time (usually used when you don't feel rude enough to call someone a straight cunt, it just sounds nicer!)