Book Buster 

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!!!!!

Book Buster by fghsgaergha September 20, 2012

bonkbuster

A blockbuster movie with alorra sexual scenes in it! .

that film, Eyes Wide Shot .

bonkbuster by hytham_hammer October 29, 2006

boombuster 

when you ejaculate on your friends forehead and he makes angry bird noises at you

i was at my friends house when i got called a boombuster by my friend

boombuster by huckle berry March 11, 2025

BoomBuster 

when you ejaculate on your friends forehead and he makes angry bird noises

i gave my friend Alex a boombuster

BoomBuster by huckle berry April 10, 2025