The phrase "old meme" refers to an internet joke or image that was once popular but is no longer as popular or relevant as it used to be. Full definition
We attempt to bring back old memes, ask which memes go into the Meme Hall of Fame, Erik talks about God of War, ask is it worth getting Destiny 2... (shoutengine.com)
Older memes powered by the Konami Code aren't only limited to Digg. (dailydot.com)
His film predates social media, but it's like a lumbering filmic version of that one Facebook friend who shares random GoFundMe pages and tired old memes, lists their job as «SAG - AFTRA,» has profile pictures of bouquets of flowers with captions like «You know what they say, love is blind» (an actual quote from the film). (washingtonpost.com)