If you aren’t sure how to define a meme, then you probably aren’t aware
of memetics, either. Memetics is the theory of mental content based on
an analogy with Darwinian evolution. In simple terms, it’s the study of
cultural information transfer. Accordingly, a meme is an idea, behavior
or style that spreads from person to person within a culture. It carries
cultural ideas, symbols or practices from one mind to another through
writing, speech, gestures, rituals or other imitable phenomena. When a
meme goes viral, it means in a short amount of time it becomes wildly
popular as it works its way into everyday life and conversations. And we
are talking about serious numbers—a viral meme can command a million
or more followers and shares in less than a week.