sexual slang for the simultaneous consumption of sperm and vaginal fluids by a man and a woman. Named Rainbow after the contrast in colours. term probably originated in Birmingham
"I bet them two had a rainbow last night"
by UseYourConfusion August 5, 2009
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The act of being homosexual or taking part in activities only an individual who is homosexual would take part in.
Sarah: "John was rainbowing so much at the party last night."

Eric: "I know. All that PDA with Ben was disgusting. We all know he's gay. He didn't need to show it."
by dghul May 30, 2009
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Gay Ted: I love rainbows
Normal Person: Fuck you, cause of queers i can nerver look at rainbows the same
by k-slave May 17, 2008
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Someone that poses as affiliated with different gangs depending on whom they are around.
Aw, he's no crip, he's a rainbow.
by sam mobo September 7, 2006
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Simply cheap shoes females wear. The rapper 21 savage says "most these hoes be wearing dem rainbows on they feet"
Hoe: aye baby you wanna have fun
21 savage: Fuck no bitch you be wearing dem rainbows on yo feet.
by Pube Forest February 12, 2017
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1.) A ray of light showing many different colours.
2.) Small creature which crawls up your leg and into your rectum, and then proceeds to bite the inside of it.
1.) What a beautiful bunch of colours in that Rainbow.
2.) Ow! That rainbow bit my ass again.
by Bob Dole March 27, 2003
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THE MAGICAL FORCE AND INFLUENCE OF GHEYNESS, STARBAWKS, AND ALICE NINE ADDICTION. MAY 'CAUSE LOSS OF MANLINESS NOT IN PON'S CASE, ABILITY TO SEE COLOR, AND DECREASE IN SIZE OF PENOR.
"I WOKE UP THIS MORNING AND FELT LIKE I GOT "A" RAINBOWS AGAIN!"

"DAMN "A" RAINBOWS, ALWAYS MESSING UP THE FRONT LAWN....."

" "A" RAINBOWS FOR DINNER AGAIN?! "

by Furaipan69 August 27, 2008
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