Stink and the Incredible Super-Galactic Jawbreaker #2 by Megan McDonald illustrated by Peter H. Reynolds*

My eight year old read this book to himself.  As he was reading, he was laughing and then made the comment, "This is the funniest book ever!".  This is his review-
"Stink is at the candy store and he sees this super galactic jawbreaker.  He buys it and eats it for a whole week."
Ms. McDonald incorporates a lot of idioms throughout the book and lists them at the end.
*Highly recommend.
-Borrowed from the library.