'Haw-haw' definitions:

Definition of 'haw-haw'

From: WordNet
noun
A loud laugh that sounds like a horse neighing [syn: hee- haw, horselaugh, ha-ha, haw-haw]
noun
A ditch with one side being a retaining wall; used to divide lands without defacing the landscape [syn: sunk fence, ha- ha, haw-haw]

Definition of 'Haw-haw'

From: GCIDE
  • Haw-haw \Haw-haw"\ (h[add]*h[add]), n. [Duplication of haw a hedge.]
  • 1. See Ha-ha. [1913 Webster]
  • 2. a loud laugh that sounds like a horse neighing. [WordNet sense 1]
  • Syn: hee-haw, horselaugh, ha-ha. [WordNet 1.5]
  • 3. a sunken fence (so as not to interfere with the view). [WordNet sense 3]
  • Syn: haha. [WordNet 1.5]

Definition of 'haw-haw'

From: GCIDE
  • Ha-ha \Ha-ha"\ (h[aum]*h[aum]"), n. [See Haw-haw.] A sunk fence; a fence, wall, or ditch, not visible till one is close upon it. [Written also haw-haw.] [1913 Webster]