Sexy spanish speaking black man who makes mistakes at love because he simple knows no better.
Wes: "You are so much better than him."
Jess: "I know he's such an El Retardo"
by Jesslynn 22880 March 22, 2007
A person who is 'CHIA' like. This person will make the most outlandish excuses for his actions. ie: "the pen wrote it down wrong." or "I entered it right, the computer must of changed it."

A person who will make mistakes and will blame everyone else for his incompetence.

He also may flake.
Did you see 'El Retardo' put his windshield wipers on upside down.
by The Jerk 29 January 03, 2008
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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