Source : Webster's Revised Unabridged Dictionary (1913)

Dodman \Dod"man\, n.
   1. A snail; also, a snail shell; a hodmandod. [Obs. or Prov.
      Eng.] --Nares.

   2. (Zo["o]l.) Any shellfish which casts its shell, as a
      lobster. [Prov. Eng.]