An instant where one resembles the lead actor from "Rainman" with intelligent bursts of either useful or useless information during general conversation.
I had a rainmanment where I was spouting off answers to the trivia questions one after another. I had a rainmanment when we were talking about the previous weekend's sporting events.
by Steve_B. January 7, 2008
A nerd; one who may be smart or particularly knowledgeable in some areas but socially or otherwise developmentally retarded
by Big Steve September 5, 2003
A guy named Pat Burke. Every time he rides a motorcycle a rain cloud finds him. He's become a curiosity amongst midwestern riders, and those daring enough to ride with him. He hails from the land of the ice and snow.
by Syd67 October 25, 2019
by chris February 23, 2005
Rainmen are chinese nerds who lie about everything to make theirselfs sound "cool" over the internet. All Rainmen does it play video games. He poses off of whatever you do so you think he is cool.
by Tyrone Washington October 6, 2004
A realization that you have just had a thought or said something so incredibly strange or stupid that you can only stand with your mouth gaping open...drooling.
I was partying with a babe the other night till I mentioned botched boob jobs .
a real rainman moment
a real rainman moment
by CARGOD December 11, 2007
An elaborate hospitality room typically reserved for high-rollers, such as the one occupied by Raymond and Charlie Babbitt in the 1988 motion picture "Rain Man"
by Jason Michael Holly August 27, 2005