kazoos

/K AH0 Z UW1 Z/
noun
  1. 1

    A simple musical instrument (membranophone) consisting of a pipe with a hole in it, producing a buzzing sound when the player hums into it.

verb
  1. 1

    To play the kazoo.

Source: https://en.wiktionary.org/wiki/kazoo, https://en.wiktionary.org/wiki/kazoos