A system for determining exactly how "low rent" a bar, restaurant or cafeteria is. To determine a business' standing on the URINAL INDEX, you throw some change into a urinal in the men's room. Every so often you check on it. If no one takes it, you may add some more. The LOWEST amount of change that it finally takes for someone to fish out the piss covered change is that business' score on the Urinal Index.
Originally invented at Darby's Oldtowne Armes, In Brampton Ontario.
Darby's was a 17 (cents) on the urinal index.