Russian Rainbow 

When a girl is giving a knob job, she puts Skittles in her mouth right before the guy skeets. As he skeets in her mouth he says, "Mmm, taste the rainbow, slut!"

"Man, Jake's mom gave me an awesome Russian Rainbow last night."

Russian Rainbow by hercules slovakia February 15, 2006

Tasting the rainbow 

Eating out one girl of each race.

John ate out Keisha, Hot Legs, Sandy, Ling Ling, and Maria - John is tasting the rainbow.

Tasting the rainbow by 'Bow Taster October 29, 2010

Go shit a rainbow egg 

Something Sergeant Cid should do.

Person 1: HEY SERGEANT CID, GO SHIT A RAINBOW EGG.
Sergeant Cid: srtop it.

Go shit a rainbow egg by Wylin May 12, 2009

Texting Rainbow

The act of waving your cell phone in the air, in the shape of an arc, or rainbow, to get signal in a deadzone. Especially when sending a text message, while the screen says "sending" but the phone has no signal.

"That guy is doing a texting rainbow. Is there any service here?"

Texting Rainbow by spazzmle March 1, 2009

Twerk Rainbow

When an assortment of different colored booties (aka different raced women) simultaneously twerk around one's body in an arch much like the shape of a rainbow. As opposed to the traditional 7 colors of the rainbow, you would generally see white, black, brown, yellow, and occasionally red in this palette of shaking badonkadonk.

"Hey man did you see Justin getting some fine booty at the club last night?"
"Yeah! The dude had a full twerk rainbow around him when they played *insert latest ign'ant rap song*!"

Twerk Rainbow by ol'dirtybastard September 4, 2013

truck stop rainbow 

When enjoying the services of a prostitute who frequents truck stops, the customer withdraws his penis just before climax and ejaculates over the prostitute in a broad, arcing pattern.

Rita was impressed by Clem's impromptu truck stop rainbow, but not enough to give him a discount.

truck stop rainbow by SmokeysOnMahTail July 10, 2010

cupertino rainbow 

Cupertino Rainbow is a term that originated in the porn industry,used to describe the sexual practice of smearing dyed or colored fecal matter on the back of one's partner by application of the penis used as a "paintbrush" following anal sex. The coloring of the fecal matter is achieved by the insertion of small colored wax pellets or "rainbow drops" into the rectum prior to initiating the sex act. Once the pellets melt the colored fecal matter can be applied via fingers or penis. Some enthusiasts or "rainbow chasers" photograph the results of the act for display as art. This act can be seen performed in the 2006 sex tape "Some Whore Under the Rainbow

"she was pretty open minded , but would never allow me to try the cupertino rainbow with her"

cupertino rainbow by DMZ1978 May 24, 2008