“Leftovers are repast history” is a food pun. The saying was posted on the website Pun of the Day in 1999.
Pun of the Day
Great One Liners of the Month - October 1999 - page 2
18. Leftovers are repast history.
9 July 2000, The Times of India (New Delhi), “Pun Times,” pg. 22, col. 8:
Leftovers are repast history.
Leftovers are repast history. http://b1of.us/?13cxic
4:53 PM - 1 Sep 2009
Leftovers are nothin but repast history.
11:33 PM - 10 Nov 2012
Replying to @AndrewSacks13
@AndrewSacks13 @cgrendy3 @MaxLeonida @ukeyou2 @LynnGay11 ???I like leftovers ...but they’re repast history…??
9:11 PM - 11 Mar 2014
Food And Drink
marval | 22:18 Wed 13th Aug 2014 | Jokes
Leftovers: Repast history.