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A person who has amazing, Nostradamus-like powers of stupidity. One with the ability to foretell the obvious future.
Nostradumbass: "Dude, I think we might be about to get hit with a piano."

Simplicio: "No shit, Nostradumbass, RUN!!!"
by the pope June 08, 2004
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1. Someone who makes foolish predictions of future events that are cleary unlikely to come true.
2. Someone who is unable to reasonably assess the direction of a given situation.
1. Gary: "I reckon England will win the world cup in 2006... it'll be great". Dave: "Nice prediction nostradumbass"
2. "You didn't see that one coming nostradumbass!"
by lukecleland November 07, 2004
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Referring to Nostradamus who, in ancient times did much predicting of the future.

Nostradumbass would be someone who thinks they can predict the future, but is too much of a dumbass to get it right.
Him: I predict that the sky will fall tomorrow!
Her: Whatever, Nostradumbass!
by queenoftheknownuniverse October 15, 2003
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1) The self proclaimed prophet ov sorts whom is most famously noted for predicting the supposed second coming ov Jesus to "the forgotten land ov Chicago when his vast collection ov pornography is exhausted by the great Deepthroat Lord Krakow's return to heaven to avenge Tom Hanks".
"Did you see that special on the history channel about Nostradumbass? Man that dude was buff."
by Incipitsathanas October 21, 2008
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1.Someone who states the obvious.
2. An annoying know it all dumbass.
3. Windbag who thinks they have a vast knowledge, but really doesn't know much about anything, but has to state SOMETHING.
"All man, it's raining out"
meanwhile you've both been standing in it for a full minute.
"no shit nostradumbass!"
by hapeelady June 17, 2009
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a friend that is notorious for making comments or predictions that are either extremely obvious or extremely ridiculous.
Nostradumbass told me that if Bowersox wins american idol the redsox will win the world series
by the pose June 12, 2010
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People who think & believe that they not only know everything, but they also are always right.
"During an innocent game of Wii bowling, the opposing team kept behaving like utter nostradumbasses. Proclaiming they'd won before the last player went,"
by ProgPrincess November 07, 2009
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