What is the origin of song Handyman with lyrics koma koma?

"Handyman" is a South African song that became popular in the early 1960s. The song is about a handyman who is always willing to help people with their chores, and it features the lyrics "Koma Koma" as a refrain. The song was originally written and recorded by the South African singer-songwriter Pat Boone in 1962. The song was later covered by a number of other artists, including the British singer Engelbert Humperdinck in 1967.