To Bo Peep Call' is a term used to describe the sound of a shepherd's flute or pipe. The term comes from the nursery rhyme 'Little Bo Peep, ' which tells the story of a girl who has lost her sheep and is trying to find them. In the rhyme, Bo Peep uses a flute or pipe to call her sheep back to her. The crossword solution for the term 'To Bo Peep Call' is BAA, which refers to the sound that Bo Peep makes with her flute or pipe in order to call her sheep back to her.