(UK) The date on which something runs out or expires and becomes out of date, in many cases requiring renewal.
The expiry date of my debit card is the 30th of April.
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.