kazoo
ka·zoo
noun
1.
a toy wind instrument that has a membrane that makes a sound when you hum into the mouthpiece
Origin
Probably onomatopoeic.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.