1-2 weeks after shaving your pubes/base of dick. The hairs remind you of the pricks on a pineapple, resulting in a pineapple penis.
I pulled down my boyfriends pants to see that he had a serious case of pineapple penis so i gave him a razor and told him to shave it.
by TheKingofHerPleasure November 21, 2011
Get the Pineapple Penismug.