book 

extremely cool; something that is mega jammin or sick nasty.

"Dog, did you see dat dunk he layed on dat man?"
"Yeeeah homie, dat jav was straight BOOK."

book by Reppin912Son April 9, 2008

book 

this often occurs when one is texting and is trying to say cool but types in book because of the way the keys are aligned

jimmy- damn that bear fight was so book!
steven- are you fucking retarded?

book by azjerbajan cat fighters 4 life October 9, 2008

Book 

Another word for cool, started from mistakenly sending the message book before hitting zero during the act of T-9 messaging.

Person 1: Did you see that sweet ride?
Person 2: Yeah, it was book bro.

Book by DCHphotography September 29, 2010

Book 

The peak of being cool, only apply to a small group of people

James acts like he is so Book, it's so embarrasing.

But we all know that Belle and Mel and the Book ones.

Book by sparetimeonmyhands December 18, 2012

book 

Something that makes you want to die it's the 21st century get an audio book

Oh look its John reading a book

book by Sugargay June 18, 2018

Book 

a thing from 100 bc that is dead

books are dead

Book by Guardian Spoon January 14, 2020

book 

Synonymous with "cool." Used only by really hip people between the ages of 18-25.

You look so book with that backpack.

book by Marcus Ripley September 12, 2009