Slog /(slŏg)/

Slog

v. t. & i.
  1. To hit hard, esp. with little attention to aim or the like, as in cricket or boxing; to slug. [Cant or Slang]

Slog

v. i.
  1. to walk heavily; to plod; to walk through resisting terrain, as in mud.
  2. To work steadily and ploddingly; to toil.