The Collaborative International Dictionary of English v.0.48:

Sneck \Sneck\, v. t. [See Snatch.]
   To fasten by a hatch; to latch, as a door. [Scot. & Prov.
   Eng.]
   [1913 Webster]

   Sneck up, be silent; shut up; hold your peace. --Shak.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sneck \Sneck\, n.
   A door latch. [Scot. & Prov. Eng.]
   [1913 Webster]

   Sneck band, a latchstring. --Burns.

   Sneck drawer, a latch lifter; a bolt drawer; hence, a sly
      person; a cozener; a cheat; -- called also sneckdraw.

   Sneck drawing, lifting the latch.
      [1913 Webster]

The Free On-line Dictionary of Computing (30 December 2018):

sneck

    The sound made by deboursification, according to
   Sam Spade anti-spam software.

   (1999-09-15)