Something you only buy into whilst wielding a raging stiffy. Examples include porno subscriptions, video games with hot girls on the cover, marriage, etc.
Usually I don't bother with paid porn but the genitals were hidden behind a paywall and I had to figure out if it was a man or a woman. That was a penis purchase I still regret.
by Prometheus McSpanky April 12, 2017
Get the penis purchase mug.