The definition of a game changer is an event or element that alters a path or an outcome.
An example of a game changer was when presidential nominee John McCain chose Sarah Palin as his running mate.
or game changer
An idea or event that significantly changes the way something is done or thought about: “A few years ago, New York baker Jim Lahey gave us a method for no-knead artisan loaves…. Calling for much less hands-on work than other recipes, it was a game-changer in the world of bread baking” ( Amanda Gold )
(plural game changers)
- (literally or figuratively) Something unexpected which changes the rules of a process viewed as a game.
- Improved drug testing has been a game changer for many sports.