rainblow 

Rainblow is the practice of having several females, each wearing differant colored lipstick, performing oral sex on a man. This will leave a rainbow effect on his penis.

The girls at the party last night gave me a colorful rainblow.

rainblow by Thomas Russell July 21, 2008

rainblow 

Rainblow is when you are performing oral sex on a man, and its really big, your mouth starts to water down the shaft as your gag reflex kicks in, ,and then use it for lube, as you are jerking him off and sucking his cock

"The guys cock was so big lastnight, I had to rainblow him"

rainblow by Perkynips2001 July 22, 2005

rainblow 

A practice, common among hetersexual men, of recieving felatio from homosexual men. This stems from the belief that homosexual men give better head.

It is important to note that participating does not compromise one's sexuality.

Kris, feeling stressed out, decided to get rainblowed by his neighbor.

rainblow by Blu57nav December 28, 2005

rainblow 

When a whale spouts water with the sun at the correct angle, the viewer sees the "rainblow".

Rainblow off the port bow Captain!

rainblow by jpeg1024 January 10, 2016

Rainblow 

When a man gives oral sex to another man.

Last night I gave my pal Tom a rainblow!

Rainblow by CarlyAndMatt August 19, 2009

Rainblow 

verb
Sex act;
when one preforms fellatio on a male with skittles in their mouth. When the male ejaculates, the cum and skittle spit mix together, creating tasty rainbow slime. The two engaging in the act begin kissing and swapping spit. It is similar to snowblowing.

Dude, I just got the craziest rainblow last night.

I think you've earned yourself a rainblow.

Honey, I have had the gosh darn'st dirtiest day in the ditch, could you do your mister a favour and rainblow me tonight?

Rainblow by Rick Linoleum January 15, 2024

Rainblow Job 

When you get multiple amount of girls, make them put on different colors of lipstick, and have them give you a blowjob.

Roger asked Molly, Tiffany, and Britney for a Rainblow Job.

Rainblow Job by MICHAELBENHAM December 25, 2010