Cobweb Trib
When two elderly women participate in the sexual activity known as tribbing.
Jimmy: Dude, I walked in on two old hags doing the cobweb trib at my grandmother's nursing home.
Paul: Holy fuck bro...you didn't happen to film it did you?
Jimmy: Of course I filmed it, you fucking retard.
Paul: Holy fuck bro...you didn't happen to film it did you?
Jimmy: Of course I filmed it, you fucking retard.