Gravity's Rainbow 

Epic 1973 novel by Thomas Pynchon about an American GI in Europe during WWII who gets a hard on whenever the Germans fire a V-2 rocket.

Gravity's Rainbow reads like a bad acid trip. Amazing fucking book.

Gravity's Rainbow by Roach Clip January 12, 2004

Rainbow six siege 

A game that will cause a severe tumour if played a lot

Person 1: want to play rainbow six siege?
Person 2: no way, I’m still recovering from the tumour it gave me last time

Rainbow six siege by R6BlitzR6 May 18, 2018

Rainbow Nazi

A person who poses as right thinking and peace loving but who is inflexible in their views and intolerant of those whose opinions differ to their own.
They may be politically motivated but use their ideological position to justify their own egotistical acts of aggression and violence.

Pseudo hippie cults which pose as spiritual for the purpose of obtaining money or power are RAINBOW NAZI in ethos.
Extremist groups with a leftist bent are also RAINBOW NAZI.

Rainbow Nazi by Mugwump November 10, 2004

rainbow stylin 

(Verb: To Rainbow Style) The act of being so consumed by music you dance in a state of pure euphoria. Named after the song by The Similou

"I was Rainbow Stylin till around 4 o'clock in World Headquarters last night!"
"I was Rainbow Stylin for hours to Savage Garden"

rainbow stylin by Mittuck January 16, 2008

Double Rainbow

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

Double Rainbow by Bukets June 28, 2015

Rainbowsperm 

A type of sperm secreted by the vagina of a wolf named Seasonal, who resides peacefully on Wolf-Haven.com with her mate, Sheri, her pack, Shimmer, and her Chatbox friends, AKA The Douchebags. Rainbowsperm is dangerous, and when it comes in contact with another penis/vagina/mangina/pengina, a baby with moar rainbowsperm will be created (an example would be Sealiah).

Dylan is only awesome because he suffered a rainbowsperm attack.

Rainbowsperm by Seasonal April 28, 2011

rainbow kiss 

rainbow kiss is when a couple (heterosexual), have sex while the female is in her menstrual cycle and the man cums in in her mouth and he gets some blood from the woman's vagina and they kiss and mix the contents of their mouths. forming a beautiful rainbow kiss.

guy 1: ayo dawg, me and my bitch gonna try that shit, whats it called?.... a rainbow kiss, you know what that is?
guy 2: yes, thank god im gay
guy 1: WHAT

rainbow kiss by urlocalhomo00 January 27, 2021