You could probably wondering what that is. It is neither a child nor a parrot babbling. That five repeating syllable of 'ku' has its meaning and is actually Malay compound words.
ku = shorter expression of aku = I / me / my
kuku = fingernail
kukuku = my fingernail
kukukuku = kuku-kuku = fingernails
kukukukuku = kuku-kukuku = my fingernails
That is the art of language. Isn't it interesting?
Now try to figure this out:
"Kuku-kuku kakiku kaku"
You can use dictionary to look up for the meaning or if you find it hard, just check with your Malay speaking friends. Good luck...