"Milo, every month big girls does pass some blood," she said patiently. "You ain' know that?"
"What?" I said, for I swore she was putting me on.
"We does call it 'period,'" she said.
"And stop with your 'what' all the time. When girls get their period they does pass some blood."
"You mean like 'first period' and 'second period' in school?" I asked innocently, for that is the only time I had heard that term being used.
"Oh Lordie," she said and began a fresh spate of laughter. "You go turn me into a biology teacher now."