"So, what does exposition mean?"
"Well," said Rory, "exposition is when a character in a novel or play or film gives the reader or audience some background information or explanation about the present situation. It's a way to quickly bring them up to speed on what's happened previously but is usually a bit clumsy.
"Now that you're clear on that, let's get a move on. Thanks to your exploits on my stag do last night, we're 100 miles away from the church where I'm supposed to be marrying Laura this afternoon, with no money, no clothes and no time."
"But what about the Sarah? Do you think she'll make good on her threat to wreck the wedding?"
"Let's not begin to get into all that again," said Rory.