A form of male masturbation where one dunks his penis into a glass of ice water at the moment of climax. Named after Coach Calhoun of Grease. Although he was struck with pies by Eugene it is plausible he could also be subject to a dunk tank at the carnival.
While Yanking and Tearing at his cock, Tom realized he was about to ejaculate. Without a sock, and no desire to soil his tummy with semen, Tom turned to his glass of ice water and plunged his member in for discharge. As his mind cleared following this elation, Tom was reminded of the great Coach Calhoun and that time he was dunked in the water tank