'Scruff' definitions:

Definition of 'scruff'

From: WordNet
noun
The back side of the neck [syn: nape, scruff, nucha]

Definition of 'Scruff'

From: GCIDE
  • Scruff \Scruff\, n. [See Scurf.] Scurf. [Obs.] [1913 Webster]

Definition of 'Scruff'

From: GCIDE
  • Scruff \Scruff\, n. [Cf. Scuff.] The nape of the neck; the loose outside skin, as of the back of the neck. [1913 Webster]