out of stock
out of stock {adj. phr.}
Having none for sale or use; no longer in supply; sold out.
When Father tried to get tires for an old car, the man in the store said that size was out of stock and were not sold anymore.
So many children have bought balloons that the store is now out of stock.
Compare: OUT OF PRINT.
Contrast: IN STOCK.
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Source: A Dictionary of American Idioms