The story
Blend of golden + grand slam.
Etymology from Wiktionary, CC BY-SA 4.0.
golden slam
Today it means: The feat of winning all four major championships (a grand slam) plus an Olympic gold medal. Full definition →
Today it means: The feat of winning all four major championships (a grand slam) plus an Olympic gold medal. Full definition →
Blend of golden + grand slam.
Etymology from Wiktionary, CC BY-SA 4.0.