home run
in baseball, a four-base hit resulting in a run by the batter
inside-the-park home run
play where a batter hits a home run without hitting the ball out of the field of play
Shot Heard 'Round the World
home run by Bobby Thompson
walk-off home run
in baseball, a home run in the final inning that ends the game
grand slam
in baseball, a four-base hit with the bases loaded; it always results in four runs scored and four runs batted in, the maximum possible from one hit (or play)
Chinese home run
derogatory term for a hit that just barely clears the outfield fence at its closest distance to home plate