Rainboosie 

A gay best friend you think of as a brother or sister. The bond you share is inseparable.
A LGBT boo

"I'm going to visit my rainboosie at a club."
"Going out to party with my rainboosies tonight."

Rainboosie by Ghostdoll July 2, 2020

Shitting Rainbows 

Someone who has such extraordinary luck that if they were to defecate a beautiful rainbow would come out of their anus rather than faeces.

"Went into town with Jim last night, he ended up shagging a 10/10er and won £100 on a scratchcard"! "Lucky bastard is shitting rainbows".

Shitting Rainbows by Bilbobaggins March 26, 2013

Rainbowman10guy 

A fat man that eats a lot and spends money only on Fortnite

Person: Damn look at him he’s got so much Vbucks. Other person: he is probably rainbowman10guy

Rainbowman10guy by ItzLambChopz April 13, 2019

rainboner 

A gay man's erection.

Elton John had a rather apparent rainboner during his last performance.

rainboner by pinkpanties24 November 2, 2011

Pink Fluffy Unicorns Dancing On Rainbows 

The best thing you could imagine because Pink Fluffy Unicorns Dancing On Rainbows are things only seen in dreams and sometimes TV shows and films. They are quick, smart, loyal and fat.

Pink Fluffy Unicorns Dancing On Rainbows is my favourite YouTube song.

Pink Fluffy Unicorns Dancing On Rainbows by WWEFIFA_Rhys August 5, 2018

Rainbowdash

An awesome pegasus pony from My Little Pony: Friendship is Magic. Her coat is a pale cyan, her eyes are strong rose, her mane and tail are rainbow striped and her Cutie mark is a cloud with a rainbow-colored lightning bolt.

I love Rainbowdash! She is so very rainbow-y!

Rainbowdash by WakaWakaOMG July 10, 2011

rainbowcake 

A situation "goes rainbowcake" when a perfectly innocent, frivolous conversation suddenly explodes into discord and strife; particularly when it becomes a political argument that never seems to end. While applicable in real life, rainbowcaking most commonly occurs in internet threads. The correct response when someone begins to rainbowcake you is to say "until it's frozen!" It spawns from the great rainbowcake apocalypse of 2014, which can be seen on The Concourse by googling "rainbowcake apocalypse."

The discussion about the relative cuteness of puppies versus kittens went all rainbowcake when Harriet called Abagail's viewpoints on the fluffiness of her tail taoist communist propoganda perpetrated by the lamestream media.

rainbowcake by mrsroboto August 9, 2014