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1.
someone who enjoys to take many small bites of a mans penis
i hear you're a knob nibbler and nibbled
Chris Watts jewish penis
by Alex Oakley January 19, 2005
 
2.
A woman who loves nothing more than to orally pleasure a man. Often without exchange of money or goods.
"After the 'knob nibbler' swallowed my kids, she got off the bus. I did'nt even get her name."
by 04GTO February 12, 2009