After you have read a book for so long (especially at night) that you can't remember or concentrate on anything else, besides what you were reading, until you conk out.
"I read Twilight for 3 hours last night and couldn't stop thinking about it until I fell asleep."
"Wow, you must have been completely book wasted!"
"Wow, you must have been completely book wasted!"
by craigishilarious February 26, 2014
Being so wasted that all inhibitions are lowered to the point where a person says anything and everything that comes to their mind creating an effect known as an "open book"
by thelonelyston3r July 08, 2010