Raihnbowtits 

Any female twitch streamer that is known more for their huge breasts and a tiny to non-existent ass, rather than their actual gaming ability. The term was named after twitch streamer: raihnbowkidz. Go to twitch.tv/raihnbowkidz How she has 60,000 followers is beyond me.

bridg: did u see that new twitch streamer?
icey: yeah, she took a page right out of raihnbowtits playbook of success.

Raihnbowtits by throwroxz May 26, 2015

sunshine and rainbows 

An expression referring to a very happy, care-free life where you have just about everything you want. It can also be used to refer to a place where someone's life will be happy, fun, and easy. When using it for children or to refer to children, it means innocence, happy, playing, loving childhood.

It was all sunshine and rainbows until my brother was born and he kept taking my toys.

sunshine and rainbows by Tektite May 27, 2016

Rainbowed 

(rān′bō′ éd)

When a doof's atmosphere elevates to such an extreme level that it causes the releases of natural endorphins in the brain. These endorphins, combined with the enriched nature of your soul and a mixture of substances as copious as they are numerous, combine into an potent cocktail causing a blissfully euphoric emotional state in which one's identity and conscience merge into the festivals collective-being. Often expressed by dancing.

I was at Rainbow Serpent Festival with the rework crew last year, everyone was so rainbowed.

Rainbowed by howsyarainbow?havingagoodtime? February 4, 2014

Farting Rainbows 

Meaning to be happy or excited in a sarcastic way.

Example 1 - I am so happy, I am farting rainbows

Example 2 - gee... your not having fun, because I am farting rainbows over here.

Farting Rainbows by kjj5hf October 27, 2009

Puking rainbows

(pyooking reyn-bohs)
1. to vomit rainbows at the sight of something amazing on teh internet.

2. To be overwhelmed with cuteness that you puke rainbows.

Antonym: vomiting

Please don't use this(or any) meme outside of the internet.

Cuteness overload, I'm puking rainbows.
or
I can't believe I got a reply from (insert celebrity's name here) *pukes rainbows

Puking rainbows by MPVTOX January 18, 2012

Shoot rainbows out of my ass 

Extreme happiness beyond comprehension.

I'd like to meet new people (in person) and increase my social circles. If something clicks I'd like to get to know that person better in the name of dating. Eventually find eternal happiness and shoot rainbows out of my ass as I ride around on my unicorn for the rest of my life.

Shoot rainbows out of my ass by Doc Molly February 26, 2015

Rainblowjob

When the girl puts a drop of food coloring of each color on her tongue and gives the guy head. When he comes in her mouth, she mixes it in her mouth and spits out a rainbow.

Dude I found some extra food coloring in my closet so I gave my girl a rainblowjob!

Rainblowjob by Slydog11 November 1, 2019