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

Rainbow_Dose 

A person on Roblox who loves fucking on wolves life 3. Example of what they said:
Rainbow_Dose: i even covered you in ccm -////-
Rainbow_Dose: ah~~
afrfrsgrsgrgs: /w Rainbow_Dose im flexible~~
afrfrsgrsgrgs: *puts vibration at level 100*

Rainbow_Dose is such a whore

Rainbow_Dose by Captain_Exiled October 3, 2021

Rainbow Math Publishing 

When math publishers pretend to be inclusive, by supporting LBGT students, teachers, and parents, when their motive is getting them to buy more of their oft-half-edited pricier titles.

Guesstimate how many gay and trans mathematicians and math educators are being taken for a ride by rainbow math publishing nationwide.

Rainbow Math Publishing by Fasters January 28, 2022

rainbow six siege 

the second you enter an online match of rainbow six siege is where you'll get mad for the rest of you life when playing siege

-r6 player who suck at playing the game

me: *tries to play rainbow six siege*

spawn peekers: n o

rainbow six siege by SIngle-fuck-with-no-life April 25, 2022

rainbow read me

To speak to some one as if they where a child or stupid

Welcome to Verizon! Would you like to upgrade your iPhone today? "DONT RAINBOW READ ME NIGGA!"

rainbow read me by Da- April 6, 2023

rainbow flag 

like a red flag, except it's a sign the person is not straight.

Dude, those shoes are a total rainbow flag.

rainbow flag by cyclopentane April 20, 2023

rainbowlogical 

anything arranged in a rainbow order

I like to organize my things in a rainbowlogical order

rainbowlogical by Impressive Ivy June 18, 2023