The story
From the practice of the third umpire having a room with an elevated position.
Etymology from Wiktionary, CC BY-SA 4.0.
go upstairs
Today it means: Used other than figuratively or idiomatically: see go, upstairs. Full definition →
Today it means: Used other than figuratively or idiomatically: see go, upstairs. Full definition →
From the practice of the third umpire having a room with an elevated position.
Etymology from Wiktionary, CC BY-SA 4.0.