(baseball, of a hit) That drives in a run that ends a game.Scott Podsednik hit the twelfth walk-offhome run in World Series history on October 23rd, 2005.
(baseball) Any event or action in the bottom of the last inning of a game that scores a run and thereby ends the game with a victory to the team at bat.
2010, May 27, Brewers overcome errors in walk-off win, It was the Brewers' first walk-off walk since May 4, 2005, when Damien Miller drew a walk to win the game, 4-3, at home over the Cubs.