Rainbow Yodel 

To throw up, vomit, blow chunks, and depending on what you ate, it could be quite colorful, i.e. to throw up after eating Skittles.

She was trashed on vodka, and rainbow yodeled all over the floor.

Rainbow Yodel by Grappler69 May 21, 2009

Rainbow Poop 

When one takes a large shit that tears their anus and then pees resulting in a rainbow of shit, blood, and piss.

"After the Wisconsin Cheese Festival I could not poop for almost 2 weeks... But when I did, I had a major Rainbow Poop blowout!"

Rainbow Poop by Urban Dickshun October 27, 2015

rainbow quartz 

A lesbian fusion (based on pearls feelings) of pearl and rose quartz, from a tv show on Cartoon Network called Steven Universe

Rainbow Quartz is a sexy fusion, except for her two pairs of eyes

rainbow quartz by NavaSteve15 May 11, 2016

rainbow 6 siege 

A very broken but fun multiplayer game.

person 1: theres a person near you MAKEOUTHILL_1-7.
person 2: otay.
person 2 shoots the guy in the head but it didnt coun
person 2: QUOI!
person 2 dies
person 1 & 2: rainbow 6 siege is broken

rainbow 6 siege by Tiddie tickler July 29, 2019

Rainbow Quartz 2.0 

Gay Mary Poppins.

Bill: Yo, have you seen Rainbow Quartz 2.0.
Mike: Nah homie, miss me with that gay shit.

Rainbow Quartz 2.0 by peepee_poopoo69420 December 18, 2019

rainbow neck 

A homosexual redneck. A hillbilly who is part of the LGBT+ community.

Those dang rainbow necks with their moonshine and drag shows are sure loud!

rainbow neck by TDCAMP January 21, 2020

rainbow rape 

Often refers to a slightly deranged group or club who derives pleasure and becomes high from virtually raping symbols which denote happiness, etc, rainbows, bunnies, smiley faces.

"So, you guys, up for another round of rainbow rape?"
"Um... not really, no."

rainbow rape by Rainbow Rapist February 2, 2009