A person with an explosive temper who goes off like a bomb,the sun;where nuclear fission or fusion takes place;A thespian who enjoys playing Einstein or Robert Oppenheimer more then just once in his acting career>
Was Sam Jaffe a NUCLEAR REACTOR or did he ever play Dr. Albert Einstein in his acting career?
by john adams November 13, 2003
Top Definition
Shotgunning a beer as an associate pours whiskey -- dammit, any hard liquor -- into the can.

D'you hear 'bout the fella that passed away?
Aye. Demolished three nuclear reactors in one sitting.
Limit yourself to one nuclear reactor per evening.
by edwinmassix May 09, 2011
Being hit with a taser then being given a wedgie.
doubleviking.com has a video of one. search girl with big mouth nuclear reactor.
by Tristan Vongkultrup January 15, 2008
A person who responds or behaves in the most aggressive possible way in response to something.
I said something controversial on social media and was berated for hours by nuclear reactors
by Misheard Metal June 20, 2016
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