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1.
Strictly according to the rules
Romeo and Juliet (1:5): "You kiss by the book."
by MBA June 26, 2004
 
2.
Inspired by the use of this phrase in Star Trek II: The Wrath of Khan, "buy-the-book" is used to communicate to the other party that there is a third party listening and disinformation is necessary.
When Amanda called her husband on speaker phone with her kids in the car, she asked for the by-the-book answer for whether the amusement park was open. He, of course, said it was closed.
by BobTheCopywriter May 08, 2010