kazoo

n. small tube-shaped musical instrument which is played by humming into a hole at one end

The kazoo is a simple musical instrument (membranophone) that adds a "buzzing" timbral quality to a player's voice when one hums into it. The kazoo is a type of mirliton - a device which modifies the sound of a person's voice by way of a vibrating membrane. The membranophone label is a key element in the kazoo being called a musical instrument. Kazoos are often used by children because they are simple to use.
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Noun
1. a toy wind instrument that has a membrane that makes a sound when you hum into the mouthpiece
(hypernym) wind instrument, wind

n. kazoo, small tube-shaped musical instrument which is played by humming into a hole at one end

n. kazoo, small tube-shaped musical instrument which is played by humming into a hole at one end