When a gentleman shaves only his scrotum in such a way that his testicles appear naked atop the hair of the perineum. This has no particular advantage to either partner involved, except that sweat from the testes will pour off into the bed of his crotch, possibly reducing their saltiness when tasted.
I noticed that Ralph had done some manscaping
last night, but the lazy jerk only gave himself a bed of lettuce. I can still smell his sweaty gooch