rainbow cow 

When every udder releases a different flavour of shake...

Strawberry, vanilla, banana, and Oreo.... You don't know which to get under first.

HOLY COW.. It's a rainbow cow, I need me some Oreo shake fresh from the udder.

rainbow cow by UndercoverOrca August 7, 2016

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

rainbowtown 

whichever place that makes you happy is called Rainbowtown.rainbowtownwhereiamhappy

I love staying home , my home is my rainbowtown.

rainbowtown by Latoot May 3, 2019