An acronym for Shirts Off Pants Down. A ritual performed by a group of men that are comfortable with their masculinity to form a brotherly bond during times of life turning events.

When you eat dirt for the first time and leave your family to build a shack in the woods

any group of men that has been rejected from the new york police department on numerous occasions, probably for lack of testicles. These men then band together to form their own police department, the sopd, and pride themselves on stealing taps, making college kids cry, locking up greek life members, ticketing jaywalkers, and basically just being wastes of life.