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38.
Something or someone that is considered slow. This can be slow-minded or slow-moving. It is also something that is used as a slang term when describing a person or a thing that is considered silly or foolish.
My teacher told me that I need to do my homework on Saturday night, that is so retarded!

Michael is handicapped and it makes him a little slow, but if you call him retarded he'll run after you with a giant stick and make you take it back!
by CutiefromKilleen December 17, 2007
 
1.
To be tarded twice..
John who is tarded.. is now retarded
by Rob March 15, 2004
 
2.
The R-word, retard(ed), was used in the past to describe a person with an intellectual or developmental disability. Since then, it has morphed into a slang word to mean things like “stupid” or “idiotic.” Many people think it is socially acceptable to use the r-word in this way but the truth is, it hurts and dehumanizes those with an intellectual disability and their family and friends. The Spread the Word to End the Word movement was created to end the pejorative use of the R-word and promote dignity and respect for people with intellectual disabilities. Join the movement by pledging to end the r-word at r-word.org and vote this definition to the top.
Person 1: I'm so retarded; I forgot to get milk at the grocery store.

Person 2: Hey, I would appreciate it if you didn’t use that word around me anymore. When you use "retarded" as a synonym for "stupid" or "idiotic," you are saying that all people with intellectual disabilities are stupid, and that’s definitely not true.
by spreadtheword June 13, 2012
 
3.
a. Stupid
b. Messed up
c. Crazy, silly, goofy
a. That girl is retarded for stealing when she is rich as hell!
b. Damn boy, your website is looking retarded!
c. Man, it's boring in here. Let's get retarded!
by YoBabyMama July 19, 2005
 
4.
In music, a down-tempo beat that is beyond ill: It is retarded.
Mutherfucker's beats is retarded!
by Jza February 07, 2004
 
5.
The word retarded in slang means to get stupid; just act how you want to; dance like you don't know what you're doing. One normally becomes "retarded" after popping an ecstasy pill or doing some sort of drug.
Remember though....ThIzZ iZ wHaT iT iZ
Get stupid, go dumb, act retarded.
by Hyphy101 December 04, 2007
 
6.
It means "very stupid" but in a more hilarious, weird, and/or spontaneous way. From the Latin word for "slow".

If you want to tick off a politically correct person, just say it. They think it's mean because people with mental problems are not always stupid, except you can't call those people "retarded" in the first place, and nobody cares anyway. Plus, once again, it's from the Latin word for "slow".
*Guy 1 is dancing very strangely.*
Guy 2 to Guy 3: Look at Guy 1 dancing like he's retarded.
by Morshu34576345624555555 October 20, 2013
 
7.
A mental condition that greatly decreases one's capacity for absorbing knowledge. Not to be confused with "stupid" which simply refers to one who possesses low mental capacity.
Person 1: That guy is so retarded.

Person 2: No, he's just stupid.
by iPawd November 01, 2012