A reference to the famous Ricardo Montalbon, from the ground breaking TV show, Fantasy Island. This modification of the word is meant, however, to imply that some one is 'retarded', but at the same time gives props to a legendary actor.
Girl A: "I tried to have a conversation with Dianne about the Iran-Contra Affair....she didn't know who Oliver North is."

Girl B: "Wow, you can't talk to that retardo-montalbon about anything"
by ellemesse July 7, 2006
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A Mexican slave-boy with physical and mental dissabilities. Resembles a retarded chimpanzee and is used for sex.
I was in Mexico and I hired a Retardo monkey to have sticky-funtime with.
by Jappy jappy jappy September 23, 2010
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person of little knowledge, synonyms: stupid, dumb. Not really mentally challenged/slow
Oh my god, what an el retardo, he doesn't even remember his own phone number (also known as a homie's digits)
by Liz00hin February 28, 2005
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A sexy person, with a really large cock who will fuck the mess out of you and have you begging for more. Eduardo Retardo is loved by all.
He had an Eduardo Retardo cock!!
by squirt squirt queef June 25, 2010
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a CB radio operator that talks on stolen equipment and is generally an idiot.
Nobody likes him, everybody hates him, he's a sticky spicky Ricky Retardo!
by Bad Habit that's right March 12, 2008
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"El Retardo" is the name of a fictional, Mexican vigilante that seeks justice but always fails becouse of the mistakes he makes which are results of the fact that he is mentally slow. (retarded)

Although, the phrase "El Retardo" is most of time used to describe an indevidual with very low intelligence by comparing that person to that super-hero.
Even though El retardo tried to stop the criminal, he failed becouse he forgot who he was after in the middle of an intense chase

"You are dumber than El Retardo, you know that?"

"Oh no, look out! It's El Retardo!Beware of his low intelligence!"
by unfunny-man November 5, 2017
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