The Collaborative International Dictionary of English v.0.48:

Smudge \Smudge\, v. t. [imp. & p. p. Smudged; p. pr. & vb. n.
   Smudging.]
   1. To stifle or smother with smoke; to smoke by means of a
      smudge.
      [1913 Webster]

   2. To smear; to smutch; to soil; to blacken with smoke.
      [1913 Webster]