Source : Webster's Revised Unabridged Dictionary (1913)

Sponge \Sponge\, v. t. [imp. & p. p. {Sponged}; p. pr. & vb. n.
   {Sponging}.]
   1. To cleanse or wipe with a sponge; as, to sponge a slate or
      a cannon; to wet with a sponge; as, to sponge cloth.

   2. To wipe out with a sponge, as letters or writing; to
      efface; to destroy all trace of. --Hooker.

   3. Fig.: To deprive of something by imposition. ``How came
      such multitudes of our nation . . . to be sponged of their
      plate and their money?'' --South.

   4. Fig.: To get by imposition or mean arts without cost; as,
      to sponge a breakfast. --Swift.