Boo-Boo-Boo

Some of the information is Boop-Oop-a-Dooping full of SPOILERS. Boop-Oop-a-Doop!

"Boo-Boo-Boo" is a scat technique that Baby Esther Jones used in her act. It is said to be the predecessor of "Boop-Oop-a-Doop."