Rainbow Slap 

When an uncircumcised man puts Skittles into his foreskin and slaps someone while yelling "smell the rainbow!"

My boyfriend Rainbow Slapped me the other day and it doubled as a really good snack.

Rainbow Slap by Nacho_7258 June 6, 2017

Rainbow Day 

When Skype features the "Rainbow Smile" emoticon. It has two meanings:
1. It is used as symbolism for Louis Riel and the fact that he is a traitor.
2. It is used as an ironic jab at the suffering that comes with the IB programme.

"Is today Rainbow Day?"
*sends "Rainbow Smile" emoticon*

"Today is Rainbow Day!"
"Happy Louis-Riel-Is-A-Traitor-Day!"

Rainbow Day by IB Suffering June 25, 2017

Rainbow sparkle puss 

A very colourful sparkly pussy

Your pussy is rainbow sparkle puss

Rainbow sparkle puss by Auddawg July 9, 2017

Rainbow dash

Rainbow dash is a female pegusi from my little pony friendship is magic she is the element of loyalty her dream is to be in the wonderbolts she hates losing the only thing she is afraid of is being a failure

Rainbow dash:not the girly one

Rainbow dash: THE TOMBOY ONE IS BETTER

Rainbow dash by Rainbow_dash12345678910 August 26, 2017

rainbow lama 

A magical being that is thought to be true. 100% Invulnerable. #MostPowerfulBeingOnTheFaceOfTheEarth

Wow its the mystical rainbow lama

rainbow lama by Pepe Da fwog January 22, 2018

Rainbow trout 

Covering a dick with honey and putting skittles all over it, ala ants on a log, then sucking said dick.

My wife wanted a sweet desert after dinner, so I prepared her a rainbow trout.

Rainbow trout by Dsenight February 8, 2020

Rainbow Rimjob 

When one inserts skittles in the rectum so that the giver of a rimjob can taste the rainbow

Dave: bro where did all my skittles go?
Danny: I took them home last night me and Jake were doing rainbow rimjobs till the sun came up.

Rainbow Rimjob by Unhappy truths July 21, 2020