One online dictionary defines uberculture as the dominant culture in a society, as opposed to a subculture.

There are 2 possible answers to this. I'll can explain one. Somebody found out that we could all be a taxi-driver, so he invented the Űber-system. There's also an app, on which you can order a person, who is connected with the Űber-app, to drive you to your appointment. You pay that person via Űber. This is much cheaper than a real taxi. It's quite modern, so this could be the answer.