A dumbass who makes other ppl dumbasses by spreading his dumbass ideas to them. Another words a dumbass who is called a retard by many is a retarder by making other ppl become as retarded as he/she.

Not only retarded by themselves, but their retarded-ness rubs off on those around them.

"a person who has been already been declared a reatard...bt since he does nt believe he is a retard, he is a retarded retard.."-Yashvardhan Singh

a retarded friendship that keeps normal boring unweird okay mentally sane alright unswag people away

A typo of the word regards which can get you in serious trouble at work.

The total lack of brain cells in a specific group

The only word in the world that is considered offensive when used properly and used improperly. If used as a replacement for the word stupid someone will immediately point out how you're being offensive. On the contrary, if you call someone who is mentally handicapped retarded, you will also be called offensive.