coat (someone or something) with (something)
To cover someone or something with something, often a substance. Be sure to coat the kids with sunscreen before you let them play outside! You need to coat the wall with primer before you try to paint it.
coat someone or something with something
to put a layer of something on someone or something. Her manager coated her with grease before she began the Channel swim. The cook coated the chicken with batter and dropped it into the hot fat.