Top Definition
To have a sweet boner, that's super hard and doesn't bend
":Yo Dude, I have totally rock-penis right now"
"This chick was walking by and a I got a sweet rock-penis"
"I was watching porn last night and got a major rock-penis"
#penis #cock #boner #hard on #rock
by Matt Calvery March 17, 2008
7 Words related to rock-penis
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