Means they are not out for coming gay or bisexual. Could give a hit to there real sexuality of being gay or bisexual.
The black nail polish defines “Hey do you like my nails” to another man as it “ hey are you attracted to me”

“John likes my black nails”
by Save BELM January 23, 2021
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She ain't got not man and is on the rag. Guess she's gonna be wearing red nail polish.
by BC in KC July 21, 2005
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A codeword for Drugs and Alcahol and whatever else you need a codeword for.

Pink Nail Polish-Ciggerettes
Blue Nail Polish-Menthol Ciggerettes
Green Nail Polish-Weed
Purple Nail Polish-Alcahol

Use any other colors if you need a codeword for other drugs like crack or shit like that.

***If your a boy just replace nail polish with shirt or hat or skateboard or something like that****
Girl1: Hey when you come over are you going to bring Blue or Pink nail polish?
Girl2:I'm bringing Blue, are you going to get that green nail polish we love?
Girl1:yes i am!
by unicornnn July 22, 2009
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The yellow nail polish pinky was a trend started on TikTok for lesbians to have a subtle way to spot each other in the wild and can be performed by painting one’s pinkies with yellow nail polish. There are other color pinkies for other sexualities.
Do you see her yellow nail polish pinky? She’s definitely a lesbian.”
by sapphrog July 1, 2021
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A color of nail polish mainly used by the people us posers think of as "goths" or "punks". Accessivley used to draw attention usually towards cuts. Used way too much.
"OOoo Im going to go to Hot Topic just to get black nail polich so I can be called gothic, cut myself, and cry my eyeliner-bled eyes out. Then I will get a studed belt. I am so HxC!
by Sean Rayburn May 4, 2005
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When a girl has light blue nail polish it is code for “I have a boyfriend” because when a girl asks a guy what color she should get her nails done, he will typically say “light blue”
Boy: “do you want to go on a date with me.”
Girl: “have you looked at my nails?”
Boy: “ oh your wearing light blue nail polish. Sorry.”
by Fruit.Loop May 28, 2021
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