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1.
Someone who is very cheap.
That dude is such a nickel dick he parks two miles away just to save a $ 1.00 parking fee.
by Pedro Rodriguez February 26, 2005
 
2.
A dick/penis that is not worth a dime.
"How was your date last night, Joanne?" Asked Katie.

"It was horrible, he had a Nickel Dick." Joanne replied.

"Oh No! That must have been awful!" Katie exclaimed.
by Rikian February 23, 2010
 
3.
some one with a extremly small penis.
god dam you taj you nickeldick!!!!
by big man out here February 11, 2010