1. As "Bobo" has often been a name used by clowns (namely dunk tank clowns), the term "Honk the Bobo" can refer to giving oral sex to a clown.
2. As the rock band Aerosmith used the title "Honkin' on Bobo" for a blues album focusing on Steven Tyler's harmonica skills, it can also be a term for playing the Harmonica, especially for blues music.
1. After the fair closed last night, she stuck around behind the dunk tank to honk the Bobo.
2. Once he and his band were all set up to play at the blues club, he was ready to honk the Bobo.