crystal cock
When a man has been using speed and gets a rock hard erection.
"oh baby.... c'mon ov'r here and sit on my crystal cock and hit my bulby!"
Crystal Cock
Your cock gets rock solid on methamphetamine.
"Shit, I got crystal cock off crank"
Crystal Cock
When you have bodily fluids encrusted onto your penis
"You'd better clean your Crystal Cock. That shit hurts."