National Dress Like a Slut Day 

synonyms: Halloween, All Hallow's Eve. An American holiday celebrated on October 31 for which women, particularly of the college-going age, dress like sluts by wearing themed costumes.
See "slutty Halloween costume formula."

My girlfriend bought a great French maid costume for National Dress Like a Slut Day; mini-skirt, fuck-me pumps, and fishnet stockings.

National Dress Like a Slut Day by Ronny teh Pir8 January 21, 2009

National Dress Like a Slut Day 

that special day of the year when girls (or usually just one girl and her friend) as an inside joke, dress as slutty as possible to make fun of all of those other bitches who do it daily, thinking they look so hot. *also to see how many guys get "excited" if you know what i mean ;]*

I'm wearing my mini skirt and thong on National Dress Like a Slut Day.

National Dress Like a Slut Day by heeeellyeah. December 14, 2009

National Dress Like a Slut Day 

An American holiday that occurs on or around Halloween during which women get tarted up and dress as slutty nurses, slutty cops, slutty superheroes, slutty schoolgirls, slutty cats, slutty cowgirls, slutty cheerleaders, etc.

For National Dress Like a Slut Day, my girl wore a pointy hat and a black bikini with her tits and ass hanging out and said it was a witch costume.

National Dress Like a Slut Day by JazmanTestifyin May 21, 2024