'Sea dog' definitions:

Definition of 'sea dog'

From: WordNet
noun
A man who serves as a sailor [syn: mariner, seaman, tar, Jack-tar, Jack, old salt, seafarer, gob, sea dog]

Definition of 'Sea dog'

From: GCIDE
  • Sea dog \Sea" dog`\
  • 1. (Zool.) The dogfish. (b) The common seal. [1913 Webster]
  • 2. An old sailor; a salt. [Colloq.] [1913 Webster]

Definition of 'sea dog'

From: GCIDE