Definition of orgasm. : intense or paroxysmal excitement; especially : the rapid pleasurable release of neuromuscular tensions at the height of sexual arousal that is usually accompanied by the ejaculation of semen in the male and by vaginal contractions in the female.
On average, the subjects burned 5.3 calories per minute. A second trial, this time commissioned (i.e. paid for) by the Les Mills Group (the people who invented Body Pump), compared a Body Pump session lasting 57 minutes with 60 minutes of continuous cycling.
According to this exercise list from Harvard Medical School, a general 30-minute strength training session burns an average of 90 calories (180 calories per hour) for a 125-pound person, 112 calories (224 calories per hour) for a 155-pound person and 133 calories (266 calories per hour) for a 185-pound person.