I don't think of any sentence as a "one-liner", but I do pay attention to how people actually speak when they are being funny. Rhythm is key.
Lorrie MooreI had never feared insomnia before--like prison, wouldn't it just give you more time to read?
Lorrie MooreI feared Sarah was one of those women who instead of laughing said, "That's funny," or instead of smiling said, "That's interesting," or instead of saying, "You are a stupid blithering idiot," said, "Well I think it's a little more complicated than that.
Lorrie MooreMy new apartment might be a place where there are lots of children. They might gather on my porch to play, and when I step out for groceries, they will ask me, "Hi, do you have any kids?" and then, "Why not, don't you like kids?" "I like kids," I will explain. "I like kids very much." And when I almost run over them with my car, in my driveway, I will feel many different things.
Lorrie Moore