The anus. Also called rusty sheriff's badge, ringpiece, starfish, butthole, bumhole (British term), asshole, arsehole (British term), poopyhole, bunghole.
The Sport-Hating Poop: You've been waiting all day for an exciting footy game, and just at the kickoff this bastard turd knocks on your WINKING BROWN STARFISH and insists on coming out to play.
1) asshole in need of washing; so dirty the skin becomes permanently brown
2) an asshole that is unsafe to fuck; puts you at very high risk for poop-cock
If not for her brown starfish, she would have felt my love in a whole new way