A 'double rainbow' is a phenomenon of optics that displays a spectrum of light due to the sun shining on droplets of moisture in the atmosphere.
Double Rainbow? What does it mean?

"Well, a 'double rainbow' is a phenomenon of optics that displays a spectrum of light due to the sun shining on droplets of moisture in the atmosphere. Does that explain it?" - Lux
by Bukets June 20, 2015
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When a girl gives a guy two orgasms in a row. The second one is usually more intense and as rare as seeing a double rainbow. Triple rainbows follow similar logic but are almost impossible to achieve in heterosexual, mature men.
Last night, Leona gave me a double rainbow with back to back blowjobs...Best sex ever!!!
by TonyO January 23, 2014
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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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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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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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When someone is "supa dupa gay" they can be called a Double Rainbow. This is off the wall in you and your friends face homo.
Bro 1: Yo, check out that Double Rainbow

Bro 2. no homo
by Nugem January 11, 2011
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