1. in the mind, intellectually.
|Sporting Sketches in Sportsman (Melbourne) (18/10/1898) 5/8: ‘He sort o’ went a bit barmy upstairs and thort he’d try what the straight lay was like’.|
|Gay-cat 104: She must be a little queer upstairs.|
|(ref. to late 19C) Amer. Madam (1981) 15: They were often wild girls, a bit batty upstairs.|
|Stone Walls and Men 271: He was a dumbbell, a moron and wasn’t all there upstairs.|
|Sisters of the Night 66: He said [...] tapping his head, ‘here’s where they got to cure you – upstairs.’.|
|(con. 1950s) Unit Pride (1981) 288: You’re missin’ something upstairs.|
|Too Late in Kavanagh S. Afr. People’s Plays (1981) 93: Of course, you are sick upstairs. It’s not the head but what’s in it.|
|Jailhouse Jargon and Street Sl. [unpub. ms.].|
|Dolores Claiborne 23: She probably wa’ant completely vacant upstairs, not even in the end. A few rooms to rent, maybe, but not completely vacant.|
2. into a senior position.
|Spidertown (1994) 118: You know Spider shot him upstairs, got ’im some big contracts.|