n., pl., -doos, or -doos.
A musical instrument of the Aboriginal peoples of Australia, consisting of a long hollow branch or stick that makes a deep drone when blown into.
[Imitative of its sound.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.