"I've never experienced anything like this before in my life." Sign up for Entertainment Weekly 's free daily newsletter to get breaking TV news, exclusive first looks, recaps, reviews, interviews ...

If the meme is the basic unit of culture, I suppose you could say the seme is the basic unit of cultural ambiguity. The seme explains why memes never survive intact.

Memes are the greatest source of short-form entertainment, especially on the internet, but these Far Side comics were 'memes' before memes existed.

In the past few weeks we’ve seen the return of ‘Hide The Pain Harold’ and the emergence of a new meme, ‘Girl Explaining’ (below), that’s quickly making its way around social.