yesterday's fish and chips

English

Etymology

Referring to the use of newspaper to wrap fish and chips.

Noun

yesterday's fish and chips (uncountable)

1. (colloquial) old news
   • 1975, JBIS: Journal of the British Interplanetary Society

     To begin with it has a powerful aroma of yesterday's fish and chips. The school was held well over four and one-half years ago […]

   • 2009, Steve Morris, In All Probability (page 74)

     However there was no way that this story was ever going to become “yesterday's fish and chips”. It just went on and on.