Greasy spoon

meaning: an old-fashioned and not so clean restaurant serving home-style cooking ("гадюшник", забегаловка)

An old dirty restaurant probably has some greasy spoons, folks, or knives.

examples: Now way will I eat there, that restaurant is a greasy spoon.

The truck driver stopped at the nearest greasy spoon for some breakfast.

P.S.: greasy - засаленный, жирный, грязный