Not really Richard Dawkins’ original definition of the term when he created it was on the lines of
A meme is an idea, behavior, or style that spreads by means of imitation from person to person within a culture and often carries symbolic meaning representing a particular phenomenon or theme.
One of the earliest internet memes was just to photoshop “All Your Base Is Belong To Us” on everything.
4chan used to be the internet meme factory where ideas were copied and mutated before they broke out to the wider internet to go viral.