smeared or soiled with grease or oil; "greasy coveralls"; "get rid of rubbish and oily rags" containing an unusual amount of grease or oil; "greasy hamburgers"; "oily fried potatoes"; "oleaginous seeds
A greasy spoon is a small, cheap, unattractive café that serves mostly fried food. A small, inexpensive, often unsanitary restaurant. a small cheap restaurant that mainly serves fried food