The Collaborative International Dictionary of English v.0.48:

Spoom \Spoom\ (sp[=oo]m), v. i. [Probably fr. spume foam. See
   Spume.] (Naut.)
   To be driven steadily and swiftly, as before a strong wind;
   to be driven before the wind without any sail, or with only a
   part of the sails spread; to scud under bare poles. [Written
   also spoon.]
   [1913 Webster]

         When virtue spooms before a prosperous gale,
         My heaving wishes help to fill the sail. --Dryden.
   [1913 Webster]