Human wine decanting
The act of inserting a catheter into the male bladder, draining out the urine then using a large syringe to inject wine back in so that it can be served by a dangling cock. Warning: There is a case report of this procedure causing life threatening septic shock, or "cock shock".
Suzy went to the wine tasting party where a vintage wee wee wine was being served by human wine decanting through enormous cock.