Top Definition
a penis that looks rotten, sometimes black looking as if it is burnt, blistered, dead peeling skin, small and shriveled.

Drew has a rotten cock, I think that he should go to the doctor and get that shit looked at before it falls on.
by JBOXED March 19, 2009
1 more definition
7 Words related to Rotten Cock
A term used for a diseased penis.
Tim proceded to place his rottencock into Sally's shitpipe, leaving her with anal warts.
by ihateelvis February 12, 2010

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