Registered Retard (RR) 

Usually the dumbest of the friend group. Mouth is always open even when not talking. Calls themself a god, alpha, a dog; but usually the runt of the litter.

My coworker is a genuine registered retard (RR), can’t close a deal for his life.

Registered Retard (RR) by JayThePlug January 1, 2022

RR (REGISTERED RETARD) 

A person who has been diagnosed with a retardation.

I went to the doctor and they told me I was somewhat autistic, now I'm a RR (registered retard).

RR (REGISTERED RETARD) by Mads Echo July 8, 2021