The Collaborative International Dictionary
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.]
Wiktionary
n. (alternative form of ha-ha English) (a ditch acting as a sunken fence)
WordNet
n. a loud laugh that sounds like a horse neighing [syn: hee-haw, horselaugh, ha-ha]
a ditch with one side being a retaining wall; used to divide lands without defacing the landscape [syn: sunk fence, ha-ha]
Usage examples of "haw-haw".
Haw-Haw Langley stared for a single instant in white faced fear, but when he realised that Black Bart was helpless as a toothless old dog, the tall cowpuncher, twisted his lean fingers with a silent joy.
Lord Haw-Haw, the most effective of the English-language German broadcasters, has been identified with faircertainty as Joyce, a member of the split-off Fascist party and a very bitter personal enemy of Mosley.
June Listened in last night to Lord Haw-Haw -- not Joyce, who apparently has been off the air for some time, but a man who sounded to me like a South African, followed by another with more of a cockney voice.
I said I would pay for my keep, and they haw-hawed and slapped me on the back and said I was a great joker.
Whilst he was thus employed I spit his boot out and butted him in the belly with a vi'lence which changed his haw-haw to a agonized grunt, and then we laid hands on each other and rolled back and forth acrost the floor, biting and gouging, and that was how the tables and chairs got busted.