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2. book bang
A college party at which girls get laid to pay for the cost of their books. See also, prostitution.
Let's go pick up some hot chicks at the book bang.
1. book bang
the act of actively trying to pickup someone on the social networking site facebook
Ex1
friend 1: Hey whos this girl on your Facebook man?
friend 2: Ohh her, just a book bang in progress

Ex2
friend 1: Hey is John ever going to get a girlfriend?
friend2: Nah, he just book bangs the girls he meets on facebook.