The Sailboat Technique

When an circumstanced male grips the tip of his foreskin, and the bottom of his ballsack and tugs in opposite direction, thus creating a triangle shape similar to the sail of a boat.

Dude bro 1: "My girlfriend caught me doing the sailboat technique, she hasn't talked to me in a week."
Dude bro 2: "Yarr, a captain always goes down with his ship.."