General Definition: 1. Taking something out of a small container with a small implement, such as a brush, and applying it to something, or any thing or any action directly or indirectly associated with this, especially liquid paper or painting a car body. As a Noun: 1. An opaque, usually white, liquid which you paint on errors in written or typed work in order to cover them. English = liquid paper, correction fluid. 2. The act of painting over scratches and imperfections on an object or picture, especially the paintwork on the body of a car. English = touch up. As a Verb or Adjective: 1. To apply liquid paper to a document. 2. To paint over scratches and imperfections on an object or picture, especially the paintwork on the body of a car. English = touch up.