Rainbow road skater 

A skater that only goes skating outside under -in his/her definition- optimal conditions: warm and dry weather, not too early (for example, after 12:00 AM), a state-of-the-art deck and a place where the ground is flat and many people are able to see them.

The biggest disadvantage of summer is all those rainbow road skaters in my favorite halfpipe.

Rainbow road skater by Bilderbikkel August 8, 2011

Rainbow Roulette 

When a bartender puts LSD into one of the bottles and forgets which.

"I forget which bottle I stashed the LSD in."
"Give me a shot of everything, time for a game of Rainbow Roulette."

Rainbow Roulette by cajunmike September 13, 2011

Rainbow Face 

Farting in someone's face then beating the shit into them or the other way round.

Last night some arsehole started on me in a bar so I grabbed his head farted in his eye then beat the shit into the prick now I bet his got a serous Rainbow Face.

Rainbow Face by Crusty Clunge June 15, 2014

Rainbow party 

It's where girls with different colored lip stick suck on a guy's penis

I can't wait to go to the rainbow party tonight!

Rainbow party by Penis lover165 April 28, 2015

Rainbow nigger 

the gayest nigger of them.

I WANNA BE TH GAYEST NIG!LIKE NO ONE EVER WAS
that black kid over there is a rainbow nigger

Rainbow nigger by Catzwithdonutzarecool June 15, 2018

rainbow meat 

Expired meat, slowly developing all the rich colours of the visual prism.

Michelle sighed as she looked at the selection of rainbow meat; knowing there was a distinct possibility of diarhea upon consumption.

rainbow meat by Shar1 September 23, 2013

Rainbow Face 

When eating out a girl, she has her period right in your face.

Dave got a rainbow face from Lauren.

Rainbow Face by StONY June 10, 2003