Original: Urinal deodorizer blocks, also often called urinal cakes, urinal mints, or urinal pucks, are the small disinfectant blocks found in urinals.
Simplified: Urinal deodorizer blocks are the small disinfectant blocks found in urinals. There are many other words for them, such as: "piss biscuit", "urinal cake", "urinal mint", or "urinal puck".