Definition from Wiktionary, the free dictionary
Possibly coined in 1963 when it was used as the title of an exhibition in Düsseldorf by Gerhardt Richter, Sigmar Polke and Konrad Fischer-Lueg.
- (art) A pop art movement that is an allusion to socialist realism.
- (art) A satirical reference to pop. (Can we add an example for this sense?)