fall short

fall short
fall short
to lack something; to lack enough of something, such as money, time, etc. •

We fell short of money at the end of the month.

Tom fell short of cash and had to borrow from me.

* * *
{v.} To fail to reach (some aim); not succeed. * /His jump fell three inches short of the world record./ * /The movie fell short of expectations./ Contrast: MEASURE UP.

Dictionary of American idioms. 2013.