1. Any of various clear or colored synthetic coatings made by dissolving nitrocellulose or other cellulose derivatives together with plasticizers and pigments in a mixture of volatile solvents and used to impart a high gloss to surfaces.
2. A glossy, resinous material, such as the exudation of the lacquer tree, used as a surface coating.
3. A finish that is baked onto the inside of food and beverage cans.
Playfully jocular; humorous