2. (noun) one-stringed bow-like instrument - played by tapping with a stick while using the mouth cupped over the string as a modifying resonator. It was made of supplejack with a muka string, which was also plucked and scraped.
(Te Māhuri Textbook (Ed. 2): 166;)
Nā, ka tae te mahi, he kū, he pākuru, he tō, he pūtōrino, he kōauau, he tōrehe, he tī papaki ringa, he porotiti, he kaupeka - kāore a Kae i kata (JPS 1928:270). / So they tried playing kū, pākuru, tō, pūtōrino, kōauau, tōrehe, hand-clapping, porotiti, and kaupeka - but Kae did not laugh.