(idiomatic) A possession or financial commitment, especially a building or vehicle, that creates substantial ongoing expenses, especially one whose costs are considered to be unsustainable.

(sometimes capitalized) Long-standing nickname of a complicated, seemingly man-made excavation on Oak Island in Nova Scotia, Canada, rumored to contain pirate treasure and which has been repeatedly and unsuccessfully probed at great expense.

A pit with no visible bottom (apparently-infinite depth). / (biblical) Hell. / (figuratively) An endless resource or supply.

A single seed in the center of a cherry, peach, plum, olive, avocado or other fruit.

plural of pit-yacker

A series of quick tapping sounds

(motor racing) A lane adjacent (usually on the inner curve) to a racetrack where the competing teams' garages are situated.

To make a series of quick tapping sounds; to palpitate

With a quick tapping sound

plural of pit lane