Wiktionary
vb. 1 (&lit go upstairs English) 2 (context cricket of an umpire English) To request a decision by the third umpire (traditionally by making a sign of a TV set with the hands)
Usage examples of "go upstairs".
Just the same, when he went back inside the house about an hour later, he bypassed the room under the stairs, and cut through the dining room and the living room to go upstairs instead.
He knew he should get up and let Hasso out, then go upstairs to bed—.
You have to go upstairs through his apartment and down the fire escape, or else go around the block and come in the alley gate.
Didn't he also long to escape the festivities and go upstairs where they could finally be alone?
If only you knew how much I used to cry at night, how unhappy and despondent I was, how lonely I felt, you'd understand my wanting to go upstairs!