dark side of the rainbow 

(Noun). There are no colors on the dark side of the rainbow.

(Adj) Describes bad emotion. Depression.

Guy 1:Hey there's Chuck. Why does he look so down?

Guy 2:He's on the dark side of the rainbow.

dark side of the rainbow by Fenderjazzmaster October 4, 2013

to taste the rainbow 

The act of suckling on the testicles of someone who wakes you by tattooing or spray painting their testicles all the colors

of the rainbow and proceeding to tea bag you.

Greg enjoyed tasting the rainbow this morning. Kyle is so nice to him.

To taste the rainbow, make sure you don't eat anything before going to bed.

to taste the rainbow by Cheese Trailer January 28, 2014

massachusetts rainbow ride 

is when many men go on to a bridge in massachusetts and have anal sex forming a chain all the way across the bridge

today me and my friends are going to do a massachusetts rainbow ride would you care to join us.

massachusetts rainbow ride by tyyoungguns February 27, 2011

Tasting the Rainbow 

When a "straight" dude sucks a gay's weasel.

Yo man, my boy meek peaced out early last night, he was busy tasting the rainbow.

Tasting the Rainbow by Von Meek January 23, 2009

Chocolate Rainbow 

A gay black guy.

Yo, that nigga Tirrell he tried to put his dick in my mouth; I didn't know he was a chocolate rainbow?
Yum, I want that chocolate rainbow.
50 cent is the biggest chocolate rainbow of them all!

Chocolate Rainbow by suga night June 2, 2010

Nigger rainbow 

Rainbow made from Niggercentipad

My heart leaps up when I behold
A nigger rainbow in the sky...

Nigger rainbow by spridax October 30, 2012

shitting the rainbow 

After eating food with copious amounts of food coloring, your poo takes on colors other than the usual shades of brown.

Mate, have a look at the icing on this cake. . . I'll be shitting the rainbow after this.

shitting the rainbow by Tim J Kelly August 12, 2005