And I don't mean dystopian YA fiction (although I do totally dig that and am looking forward to the movie!).
My version of this is the hunger I need to attack my rewrite. When you have a great idea the first go 'round, you have to let it sit in your brain for a while until you are so excited you have to write it. A similar thing exists when you do a rewrite.
What I typically do is outline the first draft of the book so I can see where all the problems are and jot some ideas down about the possible changes I can make. Then I mull it over. I let it sit in my mental passenger seat when I'm out driving or teaching or walking.
With a new outline, I have the advantage of having it all laid out before me. It's like seeing into the future. I can experiment with changes before I actually write it. If I have multiple options I can see how they play out before I commit to them.
Then I wait.
Til I'm really, really hungry.
Then I bite...