n. Informal.
a new or changed situation: The microcomputer created a new ball game in the field of data analysis. Once we're out of debt it'll be a whole new ball game.
n. Informal.
a new or changed situation: The microcomputer created a new ball game in the field of data analysis. Once we're out of debt it'll be a whole new ball game.
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012