Rainbowcore 

An aesthetic mostly among Gen z that consists of Rainbow/Flashy style

Person #1: Is that a new aesthetic? what is the name
Person #2: It's called Rainbowcore, it has existed since Weirdcore and Glitchcore were a thing

Rainbowcore by urbandictionary.comlol August 30, 2021

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

rainbowmoney 

to have a lot of money like the kind you would find at the end of a rainbow

Damn Susan your pockets are ways full of money, your parents make that rainbowmoney.

rainbowmoney by cewl dude October 25, 2007

rainbowcreeperYT 

he is a new youtuber who likes hypixel he likes listening to music about minecraft you can find on hypixel at 4pm wa time in australia on hypixel.

rainbowcreeperYT is not a noob

rainbowcreeperYT by rainbowcreeperYT March 22, 2023

Rainbowchest 

Someone who denies they are gay yet wears rainbows in the fashion of a gay person such as armbands, wristbands, or t shirts.

Jerry: Dude check out my garth brooks T-Shirt!

Bob: Dude your gay.

Jerry: Am not! (stomping foot like a little pouting bitch)

Bob: Then your a Rainbowchest!

Jerry: Then that is the case.

Rainbowchest by Santosiknow October 27, 2010