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)
en-GB/ˈɡɹænd ˈslæm/
en-US/ˈɡɹænd ˈslæm/
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)