Nostradumbass 

A person who believes they are prophetic, but are really just an uneducated dumbass

President Trump proclaim COVID-19 was a hoax, what a Nostradumbass.

Nostradumbass by cbosse86 March 12, 2020

Nostradumbass 

Someone, usually a hippy type, that portrays themselves as a seer of seers a psychic. They are simply put, morons.

Tom thought he had convinced us all about the rise of the Egyptian Empire's return but we all knew quite immediately, he was a Nostradumbass.

Nostradumbass by The seer man dude April 27, 2020

Nostradumbass 

An idiot who misquotes and/or mixes up Nostradamus' 'predictions'; also, any lunatic 'doomesday' or conspiracy theorist, especially those with access to a microphone or video equipment. (See: Glenn Beck, Jerry Falwell, Rev. Jim Jones).

"OMG!! Glenn Beck just said Arizona's gonna secede from the United States and become a sovereign nation!!" "Whoa, CHILL OUT dude; Nostradumbass doesn't know what the hell he's talking about."

Nostradumbass by BoiseBoltfan May 15, 2010

Nostradumbass 

He has the amazing ability to see up his own butt.
Yup he can just pop his head up in there and take a look all around.
see also head-up-ass-itus

some idiot: it's 4:00 right now and in a half hour it'll be 4:30
me: Wow Nostradumbass , did you figure that out all on your own by sticking your head up your own butt and looking around?

Nostradumbass by hey Holmes December 28, 2005

Nostradumbass 

Someone who knows that what they are about to do is going to turn out horrible but they do it anyway.

I'm gonna let my roommate borrow my truck this weekend. I'm such a Nostradumbass.

Nostradumbass by hnycutt February 4, 2017

nostradumbasses

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,"

nostradumbasses by ProgPrincess November 7, 2009

Nostradumbist 

A national political figure who continually predicts bad stories about his political opponents that never pan out. Such as 2016 Republican candidate Donald Trump saying (prior to being a candidate) that he was digging up bad things on President Obama and then, as the 2016 Republican candidate for President he said Hillary Clinton's newly-found additional emails were going to be "bigger than Watergate." They were not. His predictions are always dumb and wrong.

Donald Trump's failed predictions of digging up lots of dirt on President Obama and then saying Hillary Clinton's email issue would be"bigger than Watergate" make him a real Nostradumbist.

Nostradumbist by GreekFacebosopher November 6, 2016