Basically, a meme that existed way before the evolution and popularization of the internet. Memes have actually been around as long as 2,000 years with the oldest one in history being the Sator Square.
Some of the most notable pre-internet memes are Killroy Was Here, Frodo Lives, Bert Is Evil and Andre the Giant Has a Posse.
To be honest, I prefer pre-internet memes over 2010s memes. But unfortunately, there wasn't any internet to post them back then so I highly doubt anyone back then who shared Frodo Lives even knew who Frodo Baggins was or what Lord of the Rings even was considering how like I said, there was no internet back then.