the bottom fell outthe bottom fell out (of something)
something suddenly lost value.
When the bottom fell out of the real estate market, a lot of people lost a lot of money.
Usage notes: usually used in the past tense
(redirected from the bottom fell out)
the bottom fell out of (something)
The value of something reached a lower point or collapsed entirely. Once the bottom fell out of the housing market, I knew I'd be stuck with a bad investment—or sell the house for a significant loss.
bottom fell out (of something)
Fig. a much lower limit or level of something was reached. The bottom fell out of the market and I lost a lot of money.