So ladies take note if you want to look slutty as all hell this coming Halloween. because here are 25 of the sluttiest Halloween costumes. 40 Super Slutty Halloween Costumes [Pix] madduck actually if you`re going dancing in a club it gets extremely hot and those skimpy outfits help you stay cool. Slutty Halloween costumes for women can be difficult to pick out at times, Sexy Costumes for Women. Featured Have a very sexy Halloween everyone!