Retardeder 

The act of being MORE retarded than the person you are calling retarded.

He is so much more retardeder than his brother is.

Retardeder by Bacita Mae Jenkins March 22, 2022

retardeder 

adj. (even) more retarded

Damn! I thought that guy was an idiot, but his friend is even retardeder! I mean, he is D-U-M dumb!

retardeder by freakomatic May 15, 2006

retardeder 

Ashley McAdam

Ashley is retardeder

retardeder by urgayass March 6, 2020

retardeder 

contraction for more retarded

shut up, you're SO retardeder than me!

retardeder by someone January 12, 2005

Retardeder 

When someone acts more retarded than they usually do.

Stephanie is acting retardeder today than she did yesterday when she hit my car.

Retardeder by blah888888 September 9, 2011

Retardeder 

Retarded but with a "er" which makes someone or something more retarded.

every thing you say get "retardeder"

Retardeder by STOOPID words July 15, 2019

Retardeder 

When sumone is more then retarded

I thought I was retarded,but then Tristan spoken and that black kid retardeder we

Retardeder by anonymous May 10, 2021