And to “knock up” someone, is simply to show up at their flat and knock on the door.

This is why I find the casting of the Thenardiers as comic figures in the musical to be hilarious. In the novel they are despicable horrible awful characters with no redeeming characteristics. The musical keeps them as despicable characters, but turns them into a joke.

What in the world is a “Non-fiction novel”? Novels are fiction by definition.