Polar Jones rainbow 

A orange,red and purple popsicle frozen together and then inserted deep into the male rectum causing immediate melting out of the asshole.

Victoria, Roberta and I took turns drinking a polar jones rainbow out of Fred's ass last night, talk about nummy!!

Polar Jones rainbow by RVJ forever again May 4, 2019

riding the rainbow road 

When you are so high you feel as if you are on the rainbow road in Super Mario Kart

"bro last night i felt like i was riding the rainbow road"
"woah that must be some serious cush"

riding the rainbow road by cushmaster69 June 3, 2021

every unicorn will find its rainbow 

A well known phrase that essentially means the same thing as "every giraffe will find their scarf", and "every triceratops will find their berry bush".

Ted: Well you know what they say, Jim. Every unicorn will find its rainbow.
Jim: What the fuck does that even mean, Jim?

every unicorn will find its rainbow by UnicornsFindingRainbows July 5, 2020

the end of the rainbow

where you will find a pot of gold planted by a lepricorn who is is too generous for it's own good.

there is a pot of gold at the end of the rainbow....

the end of the rainbow by jollypenguin August 23, 2005

Rainbow Parade 

Gay couples holding hands as they walk through the city fighting for gay rights.

Peter; Bobby lets go to the rainbow parade. Bobby; I would love to go it sounds fabulous. Peter; Oh and Bobby, Don't forget the KY Jelly.

Rainbow Parade by Myles Chino March 7, 2007

drink the rainbow 

A drinking game in which the participants must drink a yellow drink, an orange drink, a red drink, a purple drink, a blue drink and a green drink.

"Hey, do you want to go drink the rainbow?"
"I dunno, last time I did I threw up multi-colours"

drink the rainbow by Tobold November 24, 2006

chili rainbow 

The art of forcefully ejecting diarrhea from ones anus onto another person in an arc like a rainbow.

She was certainly the pot of gold at the end of his chili rainbow.

chili rainbow by SPC Cracker July 8, 2006