guiro
/ˈgwaɪərəʊ/noun
(pl. -os)
- a musical instrument with a serrated surface which gives a rasping sound when scraped with a stick, originally made from an elongated gourd and used in Latin American music锯琴（拉丁美洲的一种打击乐器, 把葫芦刻成锯齿状, 用棒与之摩擦发声）。
词源
Spanish， 'gourd'.