A common occurrence at bear events (events for the husky, hairy gay man).

First you get sucked half hard by another attendee. Then that person guesses how far down your leg your cock will go and pins his club pin or some other pin to that spot. This is supposed to irritate the head and cause a wet spot on the pants.

Often an initiation for first time attendees

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