Meme
From ACT Wiki
Behaviour - behavioural economics.
1.
Originally, a feature of culture or behaviour passed between individuals and groups without the influence of genes and heredity.
The word "meme" derives from the Greek word mimema, meaning "imitated thing". It was coined and popularised by Richard Dawkins in The Selfish Gene (1976).
2. Information technology - internet.
By extension, an idea, image or phrase spread rapidly over the internet.
(Also known as an internet meme.)