"cyber" - William Gibson always gets credited with coining "cyberspace" in 1984, but he certainly didn't invent "cyber" as I'm old enough to remember Dr Who and the Cybermen from c.1970. I guess it all stems from "cybernetics", however old that is.....

"trophy wife" - I also love that one because it is SO emotive and instantly redolent of familiar themes. It also never ceases to amaze me how common it is, particularly on one side of the pond.....