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A word used to describe someone who is profoundly stupid. A type of stupidity that is an insult to intelligence itself. Politically correct people would like you to be rude to someone in a less offensive way, perhaps by calling them dumb instead. This ignores the fact that dumb, idiot, and many other similar insults used today were all old-timey technical terms for retards. It also ignores the fact that any word used to describe someone of below average ability in any area is an insult to someone with average ability or higher in that area.
<<This party is retarded.

>>Dude! You can't say that anymore. You have to say the party is lame, or it's dumb, or something else!

>> Get the fuck out of here with that bullshit. You just insulted people who cannot walk and people who cannot talk.
by Solve'et Coagula November 11, 2015
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3
Synonym for delayed, generally used when referring to ignition times of car engines.

Also the #1 trigger word in social media for some reason, even though worse and more unambiguously derogatory words exist, such as nigger, and most people use it to just colloquially describe something bullshit, you know, WITHOUT making fun of the mentally disabled.
Facebook user 1: Have you heard about the mayor's decision to raise taxes for low-income families?
Facebook user 2: Yeah, ruining chances of those who hardly had any to start with? That's just retarded.
Autistic person:
Random Canadian girl: TRIGGERED
by Someone32143214 November 04, 2019
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4
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
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6
going back to a German restaurant the day after you recover from symptoms of food poisoning said German restaurant gave you.
Leo is retarded. He is going back for more punishment.
by fuzee420bunny February 24, 2015
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