A small, American instrument, now usually regarded as a toy into which the performer “hums” or sings. The instrument uses a thin membrane to amplify the voice, giving it a buzzing quality. The kazoo has been produced in all shapes and sizes, but is most familiar today as a short, open-ended tube of plastic or metal with a wax paper membrane stretched across an open hole on the top of the tube. It is classified as a mirliton in the membranophone instrument category.
- to play the kazoo.
- A simple musical instrument (membranophone) consisting of a pipe with a hole in it, producing a buzzing sound when the player hums into it.