Source : Webster's Revised Unabridged Dictionary (1913)

Foul \Foul\, v. t. [imp. & p. p. {Fouled}; p. pr. & vb. n.
   {Fouling}.]
   1. To make filthy; to defile; to daub; to dirty; to soil; as,
      to foul the face or hands with mire.

   2. (Mil.) To incrust (the bore of a gun) with burnt powder in
      the process of firing.

   3. To cover (a ship's bottom) with anything that impered its
      sailing; as, a bottom fouled with barnacles.

   4. To entangle, so as to impede motion; as, to foul a rope or
      cable in paying it out; to come into collision with; as,
      one boat fouled the other in a race.

Source : WordNet®

fouled
     adj 1: made dirty or foul; "a building befouled with soot";
            "breathing air fouled and darkened with factory soot"
            [syn: {befouled}]
     2: especially of a ship's lines etc; "with its sails afoul"; "a
        foul anchor" [syn: {afoul(ip)}, {foul}]