Nadsat is a fictional language used in which novel and movie?

In "A Clockwork Orange" the Movie uses the fictional language of Nadsat, a blend of various influences, including Russian slang, Cockney rhyming slang, and the language of the criminal underworld, to create a unique and stylized form of expression. Alex and his gang, the droogs, use Nadsat as a form of communication and social cohesion, distinguishing them from the wider society. The language and their use of it reflect their nihilistic and violent worldview, where morality and empathy are absent, Anthony Burgess, the author of the novel, used his linguistic background to create a rich and complex form of language, showcasing his deep understanding of language and its role in society. The language and communication patterns also reflect the use of the Ludovico Technique, which is a form of conditioning that eliminates free will.

The Ludovico Technique, as depicted in Stanley Kubrick's film "A Clockwork Orange" is a fictional, brutal form of aversion therapy used to "cure" violence by conditioning individuals to have an aversion to it. This involves strapping a subject into a chair with their eyes open, forcing them to watch violent imagery while under the influence of a drug, which, in the film, is named Serum 114. The treatment aims to create a physical aversion to violence and violent thoughts.