When a man fathers two children within one year, one by his wife and one by his mistress.
by chitown91 June 2, 2011
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A practical prank in which you shit it a toilet and throw the contents of a cat's litter box in the toilet and don't flush.
I was over at Josh's last night and I gave him an Austrian Oak before I left.
by Superfly Mackadocious November 17, 2009
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Somewhat like "Irish Twins", but "Austrian Twins" are two kids born days apart by different mothers with the same father. One mother is the wife and the other is the mistress.
See Arnold Schwarzenegger's dilemma. He had two kids born within days of each other by different mothers...one with his wife and one with his mistress. His kids are "Austrian Twins". (He happens to be Austrian, so he gets the title!)
by Wafsnipes23 May 19, 2011
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A Swiss national who wants to emigrate to Austria but cannot because he or she has Swiss instead of EU Citizenship. Generally a former-slave/convict who often goes without a toilet or shower and sleeps in their filth while they dream of migrating to the 1st world.
“Those two Austrian Gundas sure do suck on the chillum like a Kalga bitch!”
by SukDip February 3, 2011
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When a person locks his hands together, raises them above his head and proceeds to slam them down on an opponent, girlfriend, or musk ox
Anthony: Bro, did you see what happened to that musk ox?

Durst:Yeah, i heard Trent gave it the Austrian Slam!

Anthony: Wow, that sounds almost as bad as when you did that to Sarah!

Durst: Yeah, Almost..
by DURST! November 4, 2008
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uh... we'll save this one for later.
tes tickles: hey, i heard some guy talking about a famous austrian painter. do you know who he is?
mike hawk: hitler.

tes tickles: dang. we should build a statue for whoever killed him!
mike hawk: dude.
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to act like an austrian implies showing respect to your mom cuz she gave you birth even though she can be pretty stupid sometimes
A: hey B my mom is so stupid. you know how shes lookin for sex on the internet and then calls random men just to fuck em

B: wow thats not cool A but you gotta act like an austrian and respect her even though shes an assface

A: hey dont call her assface. stop acting like a german and insult random people

to act like an austrian / show respect to your mother
by NKTE December 29, 2011
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