an injury, illness, or condition derived from the indulgance of decadent or promiscuous activities. Any injury that happens while drunk and/or partying, usually hallmarked by a either not being able to either remember, or gracefully explain, how it happened.

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

An injury sustained during sex.

An injury acquired during sex.

An injury sustained by a friend that would usually elicit concern and compassion but instead makes the friend the target of ridicule because of the idiotic manner in which the injury was received.