A formula which can be applied in order to make any Halloween costume, regardless of how plain or innocent, slutty enough to be given the "sexy" title by the Halloween costume industry. The formula, from the shoes up, goes as follows: fuck-me pumps or heels, stockings, a short skirt or booty shorts, and a top to indicate what the wearer is supposed to be dressed as. Accessories are optional.
To make a sexy police officer costume, we can apply the slutty women's Halloween costume formula: black fuck-me pumps, fishnet stockings, a blue miniskirt, and a blue button-up blouse with a police badge.
To make a sexy maid: black fuck-me heels, black stockings, black miniskirt, and a white apron.
by Ronny teh Pir8 October 12, 2008
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costume rock

trendy bands like My Chemical Romance who substitute "style" for substance by wearing ridiculous matching outfits...i.e. marching band uniforms circa 1930
costume rock is lame
by Devin Hurley December 30, 2007
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Hall Costume

A costume you wear to a Science Fiction Convention, ComicCon, or other event just to wear around the halls of the event. You have no plan to enter the costume in a contest (though you might be asked to if they don't have enough participants).
This is just my Space Ranger Flight Suit, a black jumpsuit with a couple of patches on it. I'd never wear this Hall Costume in the Masquerade Contest.
by Ozzie321 August 28, 2019
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Whiskey and Coke Costume

A costume choice made popular by the swinging community in the late 90’s. The couple who arrives wearing this is meant to indicate to other swinging couples that their preference in the bedroom is anal sex. The person who wears the whiskey outfit is said to prefer to receive, where the cola wearer prefers to give. There are several variations of this costume since the 90’s, including Jack & Coke, Jack & Ginger, Whiskey & Cola.
Oh my! Can you believe Mark and Karen showed up in a Whiskey and Coke Costume? Do you think they know what it means?”
“Oh, I bet Mark knows what it means!”
by Bobby Butt Stuff October 16, 2021
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[cock costume]

Someone who is an idiot. It was said after someone called me an ass hat. They deserved it because they are a cock costume.
You are such a cock costume for using the word ass hat.
by casemaster September 04, 2008
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National Dino costume day

Person 1: why are you dressed up Halloween is in 2 days.

Person 2: c’mon it’s national Dino costume day
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