We saw Uncle Jack every Christmas, and every Christmas he yelled across the street for Miss Maudie to come marry him. Miss Maude would yell back, “Call a little louder, Jack Finch, and they’ll hear you the post office, I haven’t heard you yet!” Jem and I thought this a strange way to ask for a lady’s hand in marriage, but then again Uncle Jack was rather strange.
– Harper Lee
To Kill a Mockingbird, Chapter 5. Uncle Jack and Miss Maudie had known one another since they were childen and liked to tease each other. He by shouting a marriage proposal to her at Christmas, she by yelling back loudly in a bid to embarrass him.