1. A loud laugh that sounds like a horse neighing
   "His haw-haw echoed through the hall, startling everyone";
   - hee-haw, horselaugh, ha-ha
    
2. A ditch with one side being a retaining wall; used to divide lands without defacing the landscape
   "The haw-haw provided a subtle boundary between the two properties";
   - sunk fence, ha-ha

Derived forms: haw-haws

Type of: ditch, laugh, laughter