Alias for an individual of exceptional intelligence whose mental capacity far surpasses average joe or even fucking intelligent joe. Derived from Dustin Hoffman's depiction of Kim Peek in the 1988 film of the same title.
Richard you will now be known as Rain Man because of your ability to solve mechanics problems that leave the rest of us perplexed and scratching our balls.
by DrHenryMoody July 12, 2010
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Someone who likes to make it rain (throw money on strippers in the clubs). Usually carries alot of money in his hand, ready to throw.
Young Dan was the richest rain man in the club, he was tossing dough like no tomorrow.
by Philly0494 December 9, 2008
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Alias for an individual of exceptional intelligence whose mental capacity far surpasses average joe or even fricking intelligent joe. Who also happens to be ridiculously tech savvy and good at programming. Typically has a complimentary skillet to hack the CIA mainframe and Pentagon simultaneous;y.
"Dude, you can't even multiply. How did you know that fact, rain man?"
by mrgreenam January 30, 2016
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Somebody who is extremely awkward who also happens to be ridiculously good at a profession, hobby, sport, etc.
Friend 1: Damn, that kid Drew missed his girlfriend's lips when he tried to kiss her!!!

Friend 2: Well at least she still will go out with him considering he's a rain-man; he has never missed an open jump-shot in a basketball game in his entire career.
by Pretty Microwave Baller November 29, 2010
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When a man cries whilst masturbating, using his own tears as lubricant.
"I'm so fucking lonely...I might just go home, have a pot noodle and rain man until the sun comes up"
by Doktor Mandrake April 8, 2015
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My new name is....(drops out beat, speaks softly) rain man
by anapplemacphreak March 13, 2005
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