salt mine


noun
  1. a mine from which salt is excavated.

  2. Usually salt mines. a place of habitual confinement and drudgery: After two weeks of vacation it will be back to the salt mines for the staff.

Origin of salt mine

1
First recorded in 1675–85

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

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