The Collaborative International Dictionary of English v.0.48:

Slog \Slog\ (sl[o^]g), v. i.
   1. to walk heavily; to plod; to walk through resisting
      terrain, as in mud.
      [PJC]

   2. To work steadily and ploddingly; to toil.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

Slog \Slog\ (sl[o^]g), v. t. & i. [Cf. Slug, v. t.]
   To hit hard, esp. with little attention to aim or the like,
   as in cricket or boxing; to slug. [Cant or Slang]
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

slog
    v 1: work doggedly or persistently; "She keeps plugging away at
         her dissertation" [syn: plug away, peg away, slog,
         keep one's nose to the grindstone, keep one's shoulder
         to the wheel]
    2: walk heavily and firmly, as when weary, or through mud;
       "Mules plodded in a circle around a grindstone" [syn: slog,
       footslog, plod, trudge, pad, tramp]
    3: strike heavily, especially with the fist or a bat; "He
       slugged me so hard that I passed out" [syn: slug, slog,
       swig]

The Free On-line Dictionary of Computing (19 January 2023):

Schelog
slog

    (Previously "slog"?) A Prolog to
   Chez Scheme macro translator by .
   Schelog relies on continuations.

   (http://cs.rice.edu/CS/PLT/packages/schelog).

   (2000-11-20)