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 29, 2009

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Top Definition
when different girls each put on different color lipsticks and suck a guys dick and leavs a mark of the lipstick color on it
"yo dude i went rainbowing last night with jess, jess, lis, and kira!"
by Jess November 14, 2003

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The act of eating out a female whilst they are having their period.
Nick spent his time eating Sarah out, and when he rose Sarah noticed blood around his lips.
by Dark Kitten April 09, 2005

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One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt