Definition of "landlubber"

landlubber

/ˈlænd.lʌ.bə/

noun
plural landlubbers
1. (nautical, derogatory) Someone unfamiliar with the sea or seamanship, especially a novice seaman.
  Quotations
  […] the making of sheathing and ship's pumps. This last rather unmarine field included more than a third of the patents before 1800, which may be one explanation for the predominance of landlubbers in early marine patenting.
  1935, S. Colum Gilfillan, The Sociology of Invention, page 84