But now, thanks to my brilliant psychology book, I know!
Meme is a self-replicating cultural element of pattern or behaviour, analogous to a gene, but passed from one individual to another by imitation rather than genetic transmition. Memes are subject to inheritanceand evolution through a form of natural selection according to their likelihood, relative to the alternatives available in the meme pool, of being reproduced or multiplying. Typical examples are tunes, ideas, beliefs, catch-phrases, stories, hairstyles, clothing fashions, recipes, inventions, skills, traditions and theories.
(from Greek 'mimema': something that is imitated)
*off to exam. Wish me luck*