 A Bonnaroo is a noun, and a Bonnaroo in 1938 in San Quentin was a really good job in prison. In their case, they mentioned that having a job in the prison library was a Bonnaroo. But the Bonnaroo Festival, the music festival where you go to see live music, actually comes from the 1974 album Desertively Bonnaroo by Dr. John. Desertively is the words definitely, positively combined.