blackboard jungle

See synonyms for blackboard jungle on
  1. a school or school system characterized by lack of discipline and by juvenile delinquency.

Origin of blackboard jungle

From the novel of the same name (1954) by American author Evan Hunter (1926–2005), on the model of asphalt jungle;

Words Nearby blackboard jungle Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023