kazoo
US /kəˈzuː/
UK /kəˈzuː/

1.
kazoo
a small, simple musical instrument consisting of a pipe with a hole in it, over which a membrane is stretched. The player hums into the pipe, and the membrane vibrates to produce a buzzing sound.
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He played a cheerful tune on his kazoo.
Tocó una melodía alegre con su kazoo.
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The children laughed as they tried to play the kazoo.
Los niños se rieron mientras intentaban tocar el kazoo.