A person who completely does not know anything they are talking about.
Tom: What color is the ocean?
Dick: Are you serious rtard???
by Cpt. Vajayjay May 10, 2009

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A mixture between the word "retard" and "bastard".
Girl: Godammit, you are such an r-tard!!! x-(
Boy: Jeez, shove off.
by kitty33kitty July 24, 2009

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someone who has bad computer skills or doesn't know how to use a computer well, used in the southpark episode 'Make Love, Not Warcraft'
my friend isa real artard, he doesnt even know how to download games
by Grimmskeaper July 07, 2009

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When someone does something strange, preverted, or extremely sexual.
Roxie is an R-tard who likes to suck on Ryan's gooch.
by RubXcube August 28, 2007

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simple explication: worse than a retard, not as bad as a fucktard.
mumbo jumbo explanation: a term used to direct a person as a mentally slow (or retarded) person used when a normal person makes a mistake.
Scene from South Park: Make Love Not Warcraft:

gerald broulflouski:y r u on the internet?? you should be outside socializing with youre friends.

kyle broulflouski: i am socializing with my friends R-Tard.

gerald: .......i am not an R-Tard......
by InuYashaFreak64 from youtube September 27, 2007

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First referenced in media (South Park) I have adopted this word to mean both 'Republican' and 'Retard'. Rtard. For those of you democrats, or liberal whatever you are, rtard is the enemy!
Bush and Cheny are such rtards. Who would have though Dick and Bush would have ever been such a bad combination?
by D3vnpb September 04, 2007

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