A
declaration used when a person does something that they think was amazing while everyone else knows it was practically a miracle.
can also be used as a verb "to
boom bitch" as in the act of doing something so stupidly surprising - or as an adjective to describe something
miraculous
Kosta Koufus went up for a shot and was totally rejected, but the shot went in
anyhow. He was so pleased with himself that he
ran down the floor exclaiming Boom Bitches!