Boom Bitches!

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!