I am unaware of any Polynesian tongue or dialect that contains the phrase "Kicky-Koo." But I don't think Sam was goiung for authenticity.
Lewis was born Samuel M. Levine in New York City. He began his music career by singing in cafés throughout New York City, and began writing songs in 1912.
He was 27 by then. Practically middle-aged.
I'lll have more of these someday, if they pop up in the local antique shop, and aren't too expensive. You'd be surprised what some people think these are worth. They're not. They're like old 45s, except you have to do all the work.