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1.
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.
Yo John is such a retarder, he taught 3 year olds how to jack off into microwaves.
by Mojojoe August 10, 2008
 
2.
annoying pub newbs in subspace that like to talk crap.
people that are called retarders are the people that have been playing for one day and talk crap in subspace the almight 2dspace ship game...
by AndrewA September 11, 2006
 
3.
Being more retarded bitch
Go sayasinh retarded
by Weaksauce November 22, 2004