be caught/taken short
be caught short
1. slang To be unprepared for a certain situation, often one involving money. I was caught short at the restaurant, so I had to borrow money from my mom.
2. slang To become pregnant when one is not married. I think that Heather has missed so much school because she's caught short.
3. slang To have an urgent need to use the toilet. Primarily heard in UK, Australia. I always use the toilet before a long drive, to avoid being caught short.
be caught shortBRITISH, INFORMAL
If you are caught short, you feel a sudden strong need to urinate, especially when you cannot easily find a toilet. He came out of the nearby bathroom; he had obviously been caught short yet again.