guiro

[ gweer-oh; Spanish gee-raw ]
/ ˈgwɪər oʊ; Spanish ˈgi rɔ /

noun, plural gui·ro.

a South American musical instrument consisting of a hollow gourd with serrated surface that is scraped with a stick.

Origin of guiro

1895–1900; < American Spanish güiro, literally, gourd, probably < Taino