Refers to those dumb-a** water-saver spigots with push-to-operate valves dat gradually rise back up and stop da water-flow after a ridiculously short time, obliging you to keep "bashing da buttons" every few seconds while trying to wash your hands or fill your drinking-cup.
One fairly-simple way to keep Whack-A-Mole faucets running continuously is to slap da "H" and "C" valves alternately, and always doing so before da currently-running one stops flowing; this causes both valves to stay open more of da time, allowing for an uninterrupted flow of water from da spout.