I've heard the phrase and have used it maybe once or twice I think it goes both ways, Boom shak and Shak boom... I've never played a game with it in it though.
Tobias, You are right but I dont think anyone's gonna type it wrong because it is a phrase which is memorized by Indian people because of TV Program at Star Plus and now this movie with same name (also it has been used in many other programs in the past). I think the value depends on typo traffic.