The result of pubic hair growing on the shaft of a penis that hasn't been shaved for 24 hours. Maxium effect of Cactus Dick occurs while inserting the penis during sex.
"What the hell Jason?! I thought I told you, last week, to shave your Cactus Dick before having anal with me!"
Spikey Pole, Hairy Shaft, Wool Coat
a person who has a dry, prickly dick called a "Cactus dick"
After Billy sucked his mums penis and she man creamed and jared down his throught he got his tongue cut up on her cactus dick.