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2.
(n): A man who is incapable of achieving an erection; someone who claims to bed many women through the means of social networking sites, only he doesn't have the necessary tool in the toolbox.
At a fantasy baseball draft, David bragged about his sexual exploits; all the while, his friends knew he was a Gravy dick.
by Man with the Golden Dick July 26, 2011
 
1.
when you have unprotected sex and dont wash your dick...then after her juices have dried on your dick and looks like powder you have sex again and her new juices mix with the dried to produce a gravy-like substance
I fucked her last night and gave her the gravy dick in the morning.
by GA Th33 Gr8 November 19, 2009