Definition of scenery-chewing in English:

scenery-chewing

adjective

North American
informal
  • (Of a performance, etc.) characterized by overacting; melodramatic; excessively emotional or sensational; (of an actor) that overacts.

noun

North American
informal
  • The action or practice of overacting.

Origin

Late 19th century; earliest use found in Davenport (Iowa) Daily Leader.