hee-hawing

Verb

hee-haw (third-person singular simple present hee-haws, present participle hee-hawing, simple past and past participle hee-hawed)

1. (intransitive) Of an ass or donkey, to make its typical vocalisation.
   • An old Jack donkey came galloping and hee-hawing in great excitement at the sight of the horses and mules.1937, Ion L. Idriess, Over the Range, Sydney: Angus and Robertson, published 1947, page 84
2. (intransitive) To mimic the cry of an ass or donkey; to make a noise resembling a donkey's vocalisations.
   • The ladies were not much the wiser, though, I confess, they were not far removed from the door. The great men inside talked indistinctly and technically, and once Doctor Dillon was so unfeeling as to crack a joke—they could not distinctly hear what—and hee-haw brutally over it.1863, Sheridan Le Fanu, The House by the Churchyard

See all 5 meanings of hee-haw