the bottom drops/falls out of the market

the bottom drops out of the market

The sales of a particular product, or in a particular industry, stop. The phrase is often preceded by "if" or "when," and the type of market is usually specified before the word "market" (i.e. "automobile market"). If the bottom drops out of the stock market, we could have another Great Depression ahead of us. The bottom dropped out of the film camera market when digital cameras arrived on the scene.
See also: bottom, drop, market, of, out

the ˌbottom drops/falls out of the ˈmarket

people no longer want to buy a particular product and so it has to be sold very cheaply: She invested in coffee, but then the bottom dropped out of the market, and she lost a lot of money.
See also: bottom, drop, fall, market, of, out