gay kid that thinks he has a long penis which it isnt and works out all the time to make himself look like a tank(he isnt)...
tom: dude that guy thinks hes sick
james: yer man hes such a rainer
by gangsta yo January 1, 2009
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From the term 'rain on my parade', used to describe someone, who, when you are feeling at the top of the world and generally high on life, has to ruin it all by an highly unnecessary little comment.
Person 1: you'll never guess what...
Person 2: what?
Person 1: I just won a million pounds on the lottery!!!!!!!!!!!!!!!!!
Person 3: You'll still have to pay tax on it though.
Person 2: just rain on his parade, why don't you?
person 1: Rainer.
by poontang r us April 12, 2011
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An annoying ass kid that thinks he's so flucking cool. "oh I can hack." good for you buddy, good for fucking you.
"i can hack so I'm cool"
"Stop being a dipshit Rainer"
by heduwfdgewjc June 12, 2019
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Adjective - Someone or something that is absurd, crazy, over the top, or ridiculous. Often times, the noun being described just makes you want to shake your head and laugh.
This was the most rainer school that we have ever been to!
by Prepositions August 22, 2015
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Rainer is a word used for the longest pee pee, and the biggest bum. A synonym of Rainer, would be "Slimthick", "Nikki", "Phat", or even "Cop-a-feel?"
"Ayyy, he got that Rainer type of thing?"
"Did you know Jen Selter has a nice Rainer?"
by Realest Savage January 22, 2016
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A person who probably needs to rethink how they started getting into the internet. This person has probably gone through many breakups and knows they all weren't real relationships. They're probably also really horny, and absurd.
Person 1:"Look at that guy over there, he's pretending to be a ninetails."
Person 2:"Yep, his name is most definitely Rainer Ami."
by Ms.Gertrude January 5, 2022
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Rainer is the best person on earth, she is very cool. she is never seen without her anklets. she is the beachy-est girl out, not to be confused with "Rainer" who is apparently a dude with with big dick. she loves to surf with Maeve Gunning. she always finds herself among a certain long haired young man.
What a Rainer Morrey thing to do
by surferhippienarlybro August 30, 2019
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