The practice of removing, trimming, or shaping the hair present on the male body for aesthetic or hygienic appeal.
If you're a man worth the hair on your ass, you have body hair in one form or another -while the amount may vary, one of the established characteristics of manhood includes the presence of at least a few patches of thick hair on a number of body parts.
So why remove it? Because it's not the 80s anymore, dude. And while a liberal covering of fur on your pecs might have been cool then, it's the fastest way to get mistaken for an urban Sasquatch today.
You don't necessarily have to be a hairy guy to adopt the practice of Manscaping. If you have a nut sack and a safety razor you are just a few strokes away from joining the club.
"At the age of fourteen, a Zoroastrian named Vilma ritualistically shaved my testicles. There really is nothing like a shorn scrotum, it's breathtaking, I suggest you try it."