be short of (something)
To be near the end of a supply of something. We're short of paper towels right now, so use them judiciously.
run short of (something)
To near the end of a supply of something. We're running short of paper towels right now, so use them judiciously.
be/run short of something
not have enough of something; only have a small amount of something left: We’re running short of butter. Can you get some more today?I’m a bit short of money at the moment. OPPOSITE: be well off for something