When two girls squirt at the same time, causing a double arc of lady Jizz across the room.
'Dude, I was watching Lesbian cams last night and totally saw a Double Rainbow!'
by Huge Crystals March 12, 2014
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V. Sex position where the girl doesa brdige, and the guy does another bridge under her, and they fuck.
Dude, yesterday we double rainbowed in the back of my car.
by Mr. Awesome 1869 April 7, 2011
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a double date between two homosexual couples
I went to gay day in disney world. I've never seen so many double rainbows in my life!
by bigpoppiboi July 5, 2011
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A rare event in which two lovers simultaneously orgasm. This is as rare as a double rainbow, hence the name.
Omg babe, we just had a double rainbow!
by Nastasia91 November 29, 2019
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a phenomenon that puts anyone that sees on the ROFLcopter while having an orgasm attack
Person 1: (crying) "OMG a double rainbow!!!"

Person 2: (trying to talk while LOLing) "I-is this a s-s-sign of

G-G-G-God??!!"

ROFLcopter Captain: "You betcha. Now you and your friend

hop the heck on board lmbo."
by hyundajuno9876 March 17, 2011
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When you are fishing with another person and you both hook and successfully land a largemouth, smallmouth, or spotted bass at the same time.
"Billy john and I were fishin' on the Big D the other day and we got a double rainbow on my big fish spot. I couldn't believe it--two five pounders!"
by ranger_joe November 5, 2013
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1. An optical instance caused by the refraction of light by water in the atmosphere.

2. A person who is a member of the LGBTQ++ community, or a rainbow, who is rainbow for two reasons. Ex.: Somone who is both a lesbian and gender fluid. In some cases, it is possible to be a triple rainbow, if one considers sexually and romanticism to be two different forms of rainbow-ness. An example of triple rainbow would be somone who is heterosexual, biromantic, and gender fluid. Trans has not been mentioned, due to the fact that the words for expressing sexual preference are influenced by gender.
P. 1. I'm a demigirl and a lesbian.

P. 2. Oh! You're a double rainbow! Cool!
P. 2. Thanks mate.
by Fabulous Magnus August 16, 2015
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