horselaugh n a loud laugh that sounds like a horse neighing Usage(s) Critics and public alike gave them the horselaugh. The truth was out: the Western hotshot is an Eastern horselaugh. From the grave of the Literary Digest, whose back was broken by its 1936 straw vote, came a sepulchral horselaugh last week. Synonym(s) hee-haw ha-ha haw-haw