hee-haw

Noun
  1. A loud laugh that sounds like a horse neighing (synset 107142619)
    is a type of: laugh, laughter - the sound of laughing
    same as: ha-ha, haw-haw, horselaugh
Verb
  1. Braying characteristic of donkeys (synset 201056425)
    is a type of: emit, let loose, let out, utter - express audibly; utter sounds (not necessarily words)
    same as: bray

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