When one somehow is retarded and autistic at the same time.
My brother has retardism. He may need to be instututionalized
people who are actually retarded mentally and physically
People with fucking retardism are actually retarded.
Someone that is so retarded it is like its their religion
That guy Liam over their is suffering from retardism
Something that's full of retarded manner
Bobby: Your opinion is full of retardism, Billy.
Axel: yep.
Morton: exactly.
Retardism is where your a retard that has autism at the same time
Yeh he must have retardism, look at him.
If you get offended by this I personally diagnose you with retardism :)
A medical condition that only can be self-diagnosed and you will be called an idiot if you use
"SeLl yOuR CORNEAS tO kInG eNglAnD!" Said the girl who we all knew, had retardism.