I saw this question on another forum, and I figured if anyone knows the answer, it would be a Mudcatter:

A number of Prewar groups recorded songs with the term Bo-Bo in the title.

King David's Jug Band - Georgia Bo-Bo
The Birmingham Jubilee Singers - Louisiana Bo-Bo
Taskiana Four - Dixie Bo-Bo
Norfolk Jazz And Jubilee Quartetes - Louisiana Bo-Bo

Does anyone know what Bo-Bo means?