Retardication 

2 or more stupid people having intercourse

That was some serious retardication when Keanu Reeves was doing Paula Abdul back in the 80s.

Retardication by Da Man with a Plan December 13, 2007

Retardex

A brand of toothpaste.
Also a new saying toward someone you dislike.

" shut up you retardex "

Retardex by mooooooooon November 22, 2009

retardra 

female acting like a retard
suffix dra (greek) acting

A woman displaying stupid idiotic behavior, acting like a retard
Are you kidding me retardra
Really retardra?
Girl they dont call you Retardra for nothing

retardra by edgeNY August 15, 2010

Retardist 

The art of being a retard.

This client should win the retardist of the year award.

Retardist by Nicoole February 25, 2015

Retarded Meatball 

A retarded Italian

"Look at that fuckin' meatball over there!"

"James is such a meatball."

"Fuckin' retarded meatball."

Retarded Meatball by JeggyTactical November 2, 2017

Retardia 

The emotion or action (depending on circumstance) of feeling or being retarded.

The feeling of retardia engulfs me as I constantly let my partner down in fire boy and water girl.

Retardia by Anton Peace-spikey September 12, 2018

Retardopted

Someone who is both retarded and adopted (and usually finds out about both at the same time).

"Yeah, we finally told Johnny he's retardopted. He's gonna be dealing with that for the rest of his life."

"Studies show that children who are retardopted are 95% more likely to develop early-onset ligma."

Retardopted by ghntb February 12, 2019