Source : Webster's Revised Unabridged Dictionary (1913)

Tout \Tout\, v. i. [imp. & p. p. {Touted}; p. pr. & vb. n.
   {Touting}.]
   1. To look narrowly; spy. [Scot. & Dial. Eng.]

   2. (Horse Racing)
      (a) To spy out the movements of race horses at their
          trials, or to get by stealth or other improper means
          the secrets of the stable, for betting purposes.
          [Cant, Eng.]
      (b) To act as a tout; to tout, or give a tip on, a race
          horse. [Cant, U. S.]