The Collaborative International Dictionary of English v.0.48:

Scuff \Scuff\, v. t. [imp. & p. p. Scuffed; p. pr. & vb. n.
   Scuffing.]
   1. To cause a blemish on the surface of, by scraping against
      an object; as, he scuffed his shoe on the ground.
      [PJC]

   2. To scrape with one's foot; as, he scuffed the chair leg
      with his shoe.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

Scuff \Scuff\, v. i. [imp. & p. p. Scuffed (sk[u^]ft); p. pr.
   & vb. n. Scuffing.] [See Scuffle.]
   To walk without lifting the feet; to proceed with a scraping
   or dragging movement; to shuffle.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Scuff \Scuff\ (sk[u^]f), n. [Cf. D. schoft shoulder, Goth. skuft
   hair of the head. Cf. Scruff.]
   The back part of the neck; the scruff. [Prov. Eng.] --Ld.
   Lytton.
   [1913 Webster]

WordNet (r) 3.0 (2006):

scuff
    n 1: a slipper that has no fitting around the heel [syn: mule,
         scuff]
    2: the act of scuffing (scraping or dragging the feet)
    v 1: walk without lifting the feet [syn: scuff, drag]
    2: get or become scuffed; "These patent leather shoes scuffed"
    3: mar by scuffing; "scuffed shoes"
    4: poke at with the foot or toe