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jackass bark

American  
[jak-as bahrk] / ˈdʒækˌæs ˌbɑrk /

noun

Nautical.
  1. a barkentine square-rigged on the mainmast above a gaff mainsail.

  2. Also called four-masted brig.  a sailing ship having four or more masts, the foremast and mainmast being wholly square-rigged, the others being fore-and-aft-rigged.

  3. any sailing ship of three or more masts carrying an otherwise nameless rig.


Etymology

Origin of jackass bark

First recorded in 1860–65