Some of the information is Boop-Oop-a-Dooping full of SPOILERS. Boop-Oop-a-Doop! Clarence Williams
During the lawsuit Clarence Williams explained how he had invented and had used "hot licks" long before Helen Kane had and explained how it was quite common and that her "Boop-Boop-a-Doop" was not original and had already been used during breaks in songs.
Are the breaks synonymous with beat rhythm?
Clarence Williams: "Yes."
Speak them.
Clarence Williams: "What-Da-Da-Da," "Roup-Pup-Poo," "Roup-Do-Poo-Do," "Scat-Dat-De-De," and "Boo-Boo-Poopa-Doo".