In Chapter 12, Scout asks Calpurnia what rape is. What does Cal say?

Calpurnia tells Scout that it's a question best answered by her father (Atticus). She then quickly changes the subject.

“It’s somethin‘ you’ll have to ask Mr. Finch about,” she said. “He can explain it better than I can. You all hungry? The Reverend took a long time unwindin’ this morning, he’s not usually so tedious.”