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mammoth jack

[ mam-uhth jak ]

noun

  1. Informal. a notably large male donkey.
  2. any of various large donkey breeds, including the American mammoth donkey, a landrace bred for strength from several donkey breeds brought into America in the 18th century.


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Word History and Origins

Origin of mammoth jack1

First recorded in 1835–40; jack 1( def ) (in the sense “male donkey, jackass”)

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Mammoth Cave National Parkmammula