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1.
lacking positiveness, a person who constanly pulling you down, having so many electrons you become a negative robot.
She was a negatoid/all she did was pull me down/one that you should avoid/anytime you see here around/ oh why be negative/oh so negative / all you do is pull me down/ damn your just a negatoid and i dont want you around
by Wizdem September 21, 2006
 
2.
As a grown woman, I coined this word in 1990 to describe my mother.
You could have just won the lottery and the negatoid would sucked the altitude out of your high in 2 minutes.
by one of three in TX December 24, 2009