Rainbow six siege 

A game to end all games it is a first person shoot in which you use different operators abilities to win the match

Man 1:Damn someone just jäger spawn killed us

Man 2:At least we can ash rush then

Everyone:Wow we are such good rainbow six siege players

Rainbow six siege by Finn6969 March 16, 2018

rainbow kiss 

Indeed, the term refers to performing cunilingus on a menstruating female, often followed by orally swapping semen and blood/other secretions. NOTHING to do with homosexuals.

rainbow kiss by duncan March 13, 2003

rainbow six seige 

A game for those men who actually prefer a god game over a shit game of csgo

I’m a go play seige as in god game RAINBOW six seige

rainbow six seige by Pussygangslayer March 22, 2018

Rainbow Muffler 

Gay Anal Sex; Homosexual Buttfuck; When two men do each other!

Robert: Hey Baby, I want to give you a Rainbow Muffler!
Enzo: NO WAY FAG!
Peter: LOL
Roosevelt: I'll take it baby

Rainbow Muffler by RMenke April 25, 2011

rainbow cough 

a cough of which multi-coloured mucous is symptomatic

Kate has been suffering from rainbow cough for two weeks

rainbow cough by Midnight Muse December 7, 2006

Rainbow Rumper 

Where a guy name Zackary Schmidt sticks his arm in another mans ass... Elbow first.

Both: Rock, Paper, Scissors!

Zack: Well, I guess you get it first.

Man: *Sigh* I lose every time.

Zack: I guess I'm Rainbow Rumper again.

Rainbow Rumper by Lolocausts December 21, 2010

Rainbow Unicorn Face Paint Warrior 

An unofficial nickname for the former WWE and current TNA wrestler Jeff Hardy.

Look the Rainbow Unicorn Face Paint Warrior is going to do the Swanton Bomb.

Rainbow Unicorn Face Paint Warrior by Humanomaly 666 June 24, 2016