It means to have sex with two different girls without washing, usually without the second one knowing.
I'm not sure she would have blown me if she'd known I had stinky dick...
by brobro November 11, 2007
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A condition that causes a man's penis to smell bad.
I suffer from stinky dick. Every time I take a piss it smell just like shit
by JM2012 January 06, 2012