Main Entry: slut
Pronunciation: 'sl&t
Function: noun
Etymology: Middle English slutte
Date: 15th century
1 chiefly British : a slovenly woman
2 a : a promiscuous womanMain Entry: 1whore
Pronunciation: 'hOr, 'hor, 'hur
Function: noun
Etymology: Middle English hore, from Old English hOre; akin to Old Norse hOra whore, hOrr adulterer, Latin carus dear -- more at CHARITY
Date: before 12th century
1 : a woman who engages in sexual acts for money : PROSTITUTE; also : a promiscuous or immoral woman
Somehow, the definitions seem to fit if one takes the less "professional" view.