1 a the juices exuding from meat during and after cooking. b a dressing or sauce for food, made from these or from other materials, e.g. stock.
2 sl. unearned or unexpected money.
Phrases and idioms:
gravy-boat a boat-shaped vessel for serving gravy. gravy train sl. a source of easy financial benefit.
Etymology: ME, perh. from a misreading as graveacute of OF graneacute, prob. f. grain spice: see GRAIN
Useful english dictionary. 2012.