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3.
Someone with a whole lot of nothing.
When Patrick lost all his money in the stock market, he became a nillionaire.
by CaughtByMoonlight February 19, 2012
 
1.
Person without any money of their own.
He looks rich but it's all borrowed and his bank account is nil, he's a nillionaire.

Everything's in his wife's name, he's just a nillionaire.
by Sirann September 09, 2007
 
2.
Person without any money of their own.
He looks rich but it's all borrowed and his bank account is nil, he's a nillionaire.

Everything's in his wife's name, he's just a nillionaire.
by SirAnn August 31, 2007