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The scale of where a girl rates in terms of how bad you want to have sex with her. Usually defined between 1-10.
Dude, check out that girl on the treadmill. Would you hit it?

Well of course I would but I give her a bangability factor of 7.
by Southbeachstyle August 01, 2008
The property, for a woman, of offering a man a pleasurable sexual encouter.
Steve: Hey, Charles, what do you think about Katy Perry?
Charles: Hum... She does possess a certain bangability!
by IronChef_34 April 14, 2009