1. The ability to maintain an enduring penile erection whilst performing sexual intercourse for a prolonged amount of time, regardless of the positioning or frequency of thrust
2. Something consistently practiced on Sting's tour bus and/or in his bedroom, likely for decades to come
Jizcipline is something I once possessed in my twenties, but time has been so cruel to these wrinkled prunes I doubt there is any chance for redemption, my dear. Yes, I shall call you a taxi post-haste.