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!"
by craigishilarious February 26, 2014
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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"
What did u expect me to say, i was open-book wasted
by thelonelyston3r July 8, 2010
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