ZOO. It is an archaic word which we still use to describe a female who is no longer a girl and is not yet quite adult.
THE ELDERLY GENTLEMAN. A very agreeable age to associate with, I find. I am recovering rapidly. I have a sense of blossoming like a flower. May I ask your name?
ZOO. Zoo.
THE ELDERLY GENTLEMAN. Miss Zoo.
ZOO. Not Miss Zoo. Zoo.
THE ELDERLY GENTLEMAN. Precisely. Er—Zoo what?
ZOO. No. Not Zoo What. Zoo. Nothing but Zoo.
THE ELDERLY GENTLEMAN [puzzled] Mrs Zoo, perhaps.
ZOO. No. Zoo. Cant you catch it? Zoo.
THE ELDERLY GENTLEMAN. Of course. Believe me, I did not really think you were married: you are obviously too young; but here it is so hard to feel sure—er—