- the braying sound made by a donkey.
- rude laughter.
- to bray.
Origin of heehaw
An Americanism dating back to 1805–15; imitative gradational compound
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for heehaw
From somewhere just out of their view had come the loud heehaw, heehaw of a donkey.A Ticket to Adventure
Roy J. Snell
- an imitation or representation of the braying sound of a donkey
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012