haw-haw

Alternative form of ha-ha (a ditch acting as a sunken fence)

One line of steps we traced from the spot to the haw-haw; they were very distinct upon the turf; the heel was toward the haw-haw, the toe toward the spot where the murder was committed.

[…] there were three hundred yards or so of meadow ending in a haw-haw, and then a low courtyard wall.

Alternative form of ha ha (“laughter”) (sometimes suggesting an upper-class British accent)

"Bless thy simplicity, Tess," said her companions. "He's got his market-nitch. Haw-haw!"

Alternative form of ha-ha (“to laugh”).