Tumbao is a Cuban musical and rhythmic style, as well as the name of a recording label and a band. Sort of a cross between Mambo, Salsa, and Reggae. Always a strong, syncopated rhythm. Bob and Susan's translation is perfect.
TUMBAO IS A PORTUGUESE WORD, BUT IN SPANISH USAGE, IS A HYPENATION OF TUMBADO, SHORTENED AMONG MOSTLY UNEDUCATED PEOPLE. A SLUR IN LANGUAGE. SORT OF LIKE HIP-HOP RAP EBONICS- WAT UP WIT YU DADDY