Rainbow kisser 

One that goes down on a female while she is on her period.

That nasty little rainbow kisser needs to wipe his mouth.

Rainbow kisser by AkuYuni August 27, 2003

rainbow eyeshadow

a type of eye makeup favored by scene kids which may sound ridiculous but can be pretty cute when done by the right hands. usually a shimmery yellow, hot pink, and mint green combination.

that rainbow eyeshadow is pretty sexy.

rainbow eyeshadow by philphleira nachitaki October 9, 2006

Rainbow

Hard rock band formed in the mid-1970s by guitar virtuoso Ritchie Blackmore after leaving Deep Purple. Initially fronted by singer Ronnie James Dio who eventually left in 1979 to replace Ozzy Osbourne in Black Sabbath. Rainbow incorporated medieval themes and classical-inspired guitar work into heavy metal.

Rainbow's big songs include "Man on the Silver Mountain", "Long Live Rock N' Roll", "Stargazer", "Since You've Been Gone", and "Stone Cold".

Rainbow by Bill M. September 10, 2004

rainbow lick 

when a guy eats you out while your on your period.

that boy gave me a rainbow lick and all

rainbow lick by Jade June 18, 2003

Rainbow Swirl 

Giving oral sex to a woman whilst she is menstruating.

I was giving my girl the time of her life only to be left with a rainbow swirl surprise.

Rainbow Swirl by nomz.net October 18, 2008

rainbow flip

ecstacy + mushrooms + lsd = raindbow flipping

I'm gonna rainbow flip at the rave tonight.

rainbow flip by aliceD July 29, 2009

Rainbowatarian 

A person who believes or fights for equality for all.

I say it loud and I say it proud: I am a Rainbowatarian!

Rainbowatarian by Itchyiris February 17, 2010