The context of the following conversation is Quinn knew Ash well enough that they broken into and stole a jacket from Ash's locker.:
Quinn says But I knew Ash well enough to know he had a jacket in his locker..
The friend responds Oh, what did you do?.
Quinn responds We broke into the locker and stole his jacket..
The friend responds For a prank, or for real?.
Quinn responds For a prank; I'm going to wear it in front of him and see if he notices..
The friend responds That should be pretty funny..