(~s)
1.
The ~ on a food container is the date by which the food should be sold or eaten before it starts to decay. (BRIT; in AM, use expiration date )
...a piece of cheese four weeks past its ~.
N-COUNT
2.
If you say that someone or something is past their ~, you mean they are no longer effective, interesting, or useful. (BRIT)
As a sportsman, he is long past his ~.
PHRASE: N inflects, v-link PHR disapproval