Montana Leaky Faucet

A sex act in which a man, right as he is about to ejaculate, walks over to a freezer and freezes his penis for 8-12 hours. After his penis is thoroughly frozen, he walks back to his partner and holds his penis over his or her mouth, allowing cum to slowly drip out as the penis thaws.

Person 1: "Damn bro, my girl wants me to give her a Montana Leaky Faucet tomorrow and I'm not sure if I'm ready!"
Person 2: "Your penis will surely hurt!"