slog


slog (http://definr.com/slog)

     v 1: work doggedly or persistently; "She keeps plugging away at
          her dissertation" [syn: plug away, peg away, {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;
        "Donkeys that plodded wearily in a circle around a gin"
        D.H. Lawrence [syn: footslog, plod, trudge, pad, tramp]
     3: strike heavily, esp. with the fist or a bat; "He slugged me
        so hard that I passed out" [syn: slug, swig]