'penny dog' definitions:

Definition of 'penny dog'

From: GCIDE
  • Tope \Tope\, n.
  • 1. (Zool.) A small shark or dogfish (Galeorhinus galeus syn. Galeus galeus), native of Europe, but found also on the coasts of California and Tasmania; -- called also toper, oil shark, miller's dog, and penny dog. [1913 Webster]
  • 2. (Zool.) The wren. [Prov. Eng.] [1913 Webster]