From the forums:
Kyle: So she knew about the hotel, huh?
Jeff: You practicing to be an echo chamber or something?
Repeat what you say to provide exposition?
Mike, Mystery Science Theater 3000 episode 810, "The Giant Spider Invasion"
Ghido: [You'll need] the twelve legendary weapons used to defeat the warlock Enuo a thousand years ago.
Bartz: The twelve legendary weapons?
Ghido: Sometimes I wonder if you say things like that to spite me... Yes, the twelve legendary weapons. They are weapons. They are legendary. There are even twelve of them.
Final Fantasy V, GBA version
GLaDOS: Well. This is the part where he kills us.
Wheatley: Hello! This is the part where I kill you!
CHAPTER 9: The Part Where He Kills You
Achievement Unlocked: The Part Where He Kills You
Irritated Statement: Master, if you insist on echoing everything I say, this already tedious conversation is in danger of becoming even longer.
Graham: Now, it's important to remember that the player is stupid, so if you have any really crucial information you need them to know, have characters in the game ask the same kind of idiotic questions the player would ask if they were there.
Paul: And if you can't think of any stupid questions, just repeat the last thing that was said in the form of a question.
Shnitzel: Radda radda ra-radda radda!
Chowder: What do you mean "stop repeating everything you say"?
Bill: That guy's job is to repeat everything he says like he doesn't believe it.