blackboard jungle

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

Origin of blackboard jungle

1
From the novel of the same name (1954) by American author Evan Hunter (1926–2005), on the model of asphalt jungle;

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024