Rainbow words- a thought you have when you are unconscious during surgery. It is a hint you are failing in English.
by I don’t feel so good Mr. Stark October 13, 2018

A shit so massive it goes from one end of the spectrum to the other. It typically starts off as a dry, hard bowel movement and ends in diarrhea.
Person 1: I was on the toilet for 20 minutes...
Person 2: Constipated?
Person 1: Nah, just took a rainbow dump... It kept coming.
Person 2: Constipated?
Person 1: Nah, just took a rainbow dump... It kept coming.
by Ark-7 February 29, 2012

by Violet The Draconian Queen February 19, 2015

A homosexual adolescent, teen, or young adult, of either gender. The name "Rainbow Youth" is derived from "Hitler Youth", based on the misconception that gay people "recruit" youths to their "team". See also Rainbow Lady and Rainbow Man.
by Rainbow Lady March 5, 2011

Rainbow tickles are carried out by mermaids lying next to each other in bed, they run their fingers all over each other's bodies, making the mermaid feel alive and considerably horny.
by Merman and his Mermaid March 4, 2016

Jack: How was your one night stand?
Allan: She was insane bro, she gave me an Australian rainbow.
Jack: Thats what im talking about
Allan: She was insane bro, she gave me an Australian rainbow.
Jack: Thats what im talking about
by Aloseda Oleb January 13, 2013

The act of a "once presumed straight" person , who has recently come out as LGBT and become more comfortable with themselves, becoming REALLY gay, REALLY fast.
"Hey, what's with Tom? Last semester he was wearing sweatpants and dirty t-shirts. Now he's got frosted hair, tight clothes and pride bracelets on".
"Yeah, he performed a rainbow rush to make up for all those years in the closet"
"Yeah, he performed a rainbow rush to make up for all those years in the closet"
by mattyj94 July 29, 2015
