Top Definition
Noun.

When your reading a popular book and a person who has already read the book comes up to you and asks how far you are in the book by revealing some major event in the book that you haven't read yet. This spoils the book and the person who asked the book buster is officially a dumbass.
Dumbass:Oh, you're reading Harry Potter and the Deathly Hallows!
Reader:Yup
Dumbass:Did you get to the part where they kill voldemort?
Reader:Facepalms

Book Buster!!!!!
by fghsgaergha September 20, 2012

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×