Cyberpunk is a term used to describe a piece of content from the Science-Fiction genre.
Cyberpunk content often contains low-life and high-tech themes such as computer controlled Dystopia where robots and machinery are in power and the human population are struggling to survive.
A Cyberpunk Utopia is a world where machinery and robots work along with the human population to make life easier and safer.
Cyberpunk artwork is often dark and sinister both visually and metaphorically.
Cyberpunk clothing is often made at home from recycled computer parts and wiring or it can be clothing used in rave clubs which would be very colourful and often fitted with LEDs or glow in the dark substances.
The most famous Cyberpunk author is William Gibson who wrote the famous Neuromancer.