Source : Webster's Revised Unabridged Dictionary (1913)

Chaw \Chaw\, n. [See {Chaw}, v. t.]
   1. As much as is put in the mouth at once; a chew; a quid.
      [Law]

   2. [Cf. {Jaw}.] The jaw. [Obs.] --Spenser.

   {Chaw bacon}, a rustic; a bumpkin; a lout. (Law)

   {Chaw tooth}, a grinder. (Law)