oildown noun2 •The national dish of Grenada, consisting of meat, breadfruit, and other vegetables slow-cooked in coconut milk until all the coconut milk is absorbed.Tomorrow night we go be cooking ah oildown right heah. — 2011 •An oil spill sufficiently serious as to require the use of mechanical equipment to clean it up.A first lap track oildown shuffled the front-running pack and ended defending champ Don Courtney's chances to repeat. — 1983 formsoildowns