perfect rainbow

A male-only auto-erotic sexual act wherein an individual laying on his back urinates in an arc, directly into his own mouth. Not to be confused with a Partial Rainbow, in which the individual need only hit anywhere within the facial region.

Ben: I was home watching Orange is The New Black last night when I got bored and did a perfect rainbow. Didn't spill a drop.

Jose: Damn man, you're sick in the head.

by Don's Johnson October 26, 2017

Magic rainbow tree

When a gay guy has a boner

I gave Shaw a magic rainbow tree last night when we made out

by Rad.n0t.sad February 2, 2018

Cosmic Rainbow

The resulting act of ejaculating into a woman’s vagina while she is on period

“Dude she was on her period so it ended in a cosmic rainbow”

by SamFlynn2010 July 19, 2018

Russian rainbow

Its the act of eating your baby brother while snorting some cocaine.

Oh look at Michael he's doing a Russian rainbow.

by Giannisantetokounmpo December 2, 2020

Premium rainbow kiss

When a rainbow kiss isn’t exciting enough so you insert skittles into the menstrating female then swap the semen blood and skittles by kissing.

I’m bored with a normal rainbow kiss, do you want to try an premium rainbow kiss instead? I have the skittles

by Alpanda23 February 24, 2021

Black Rainbow Troll

A PC Karen who trolls urban dictionary and ruins good things including the REAL definition of black rainbow.

I went to look up the definition of Black Rainbow but all I see is this unseasoned definition. It must have been the PC Black Rainbow Troll red flaging definitions on urban lingo again. Typical Black Rainbow Troll.

by R3l November 23, 2021

fuzzy rainbows

Used in the Stage countdown before the first set starts at a Billy Strings concert.

(15 minutes 'till 8pm they announce: 15 minutes 'till fuzzy rainbows. At 5 minutes until fuzzy rainbows the crowd grew noticably excited.)

by Billy Fan February 14, 2023