When you are the only, or one of few, women presenting to a room of mostly men in a business setting.
Man: Hey, how did your presentation go?

Woman: It was a total Board Bang - I was the only woman in the room.
by The Snoofer July 21, 2014
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A board that you show a person, and they magically run the fuck into it, causing severe head trauma.
"Tony pissed me off, so i showed him my fucking head bang board."
by krookedcrow July 17, 2006
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