be on your uppers
US /bi ɑn jʊər ˈʌpərz/
UK /bi ɑn jʊər ˈʌpərz/

1.
貧乏である, 金がない
to be very poor, having very little money
:
•
After losing his job, he was really on his uppers.
仕事を失ってから、彼は本当に貧乏だった。
•
The company has been on its uppers for months and might close down soon.
その会社は数ヶ月間財政難で、まもなく閉鎖されるかもしれない。