This expression can be used in reference to quickly explaining an idea, motive or action to make a very firm point. It's a way of saying that something is certain and will happen no matter what. The use of the word 'book' is synonyms with 'print.' Once something is printed (i.e. newspaper, novel), it is permanent.
"The Breakfast Club" (1985)
Vernon says, "Now, I may not have caught you in the act this time, but you can bet I will."
Allison laughs.
Vernon replies, "You can make book on that, missy!"
"Don't worry they will spend her money one day, you (can) make book on that."
Source: Ryder Williams, New York
a book of titties; or a simple non-titty-associated book: the word is usually used between the hours of 2 am and 6 am, although excessive usage may lead to addiction to the term
A Nintendo Wii modified to integrate Facebook, Guitar Hero III, and a 5.1 optical audio connection to a Dolby Digital receiver.
"Hey Jenna, do you want to stop over and play Super Mario Galaxy later or maybe bowling?"
"No, Thanks, I'm playing the Faceguitarwii-book right now. Did you know I'm completely obsessed with facebook? I need help. Can you help me? I think I should maybe go to an AA meeting or something. I think they'll clap for me there and I'll be less obsessed. No wait, I'll be too busy playing to go to the meeting."