1. Work doggedly or persistently
   "She keeps slogging at her dissertation";
   - plug away, peg away, keep one's nose to the grindstone [informal], keep one's shoulder to the wheel [informal], grind away, slave away
    
2. Walk heavily and firmly, as when weary, or through mud
   "Mules slogged in a circle around a grindstone";
   - footslog, plod, trudge, pad, tramp, tromp [N. Amer, informal], trog [Brit, informal]
    
3. Strike heavily, especially with the fist or a bat
   "He slogged me so hard that I passed out";
   - slug [informal], swig

1. Long and tiring mental or physical work, travel, etc.
   "writing the paper was a real slog"; "getting up the hill was a slog";
   - effort
    
2. [Brit, informal] A heavy blow with the hand
   "The boxer delivered a powerful slog to his opponent's jaw";
   - thump, slug

Derived forms: slogs, slogging, slogged

Type of: blow, hit, walk, work

Encyclopedia: Slog