Someone who has a very tiny cock, also someone who doesn't like the term Donkey Dick
Well he didn't like donkey dick so now I call him mouse cock
by Deadliest Catch Xtra Crabs April 21, 2009
Some one who has a very tiny penis. Often given the name Luke.
Person 1: Wow that guys penis is small!
Person 2: Was it a mouse cock?
Person 1: Yeah, he was Luke.
by SuperMonkey June 15, 2013
A tiny or very small penis.
Josh has a case of mouse cock that small dicked bastard
by pkt December 17, 2004

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