"큐 세대" is a new Korean word used to describe "a generation of people who are absorbed in the Internet and have little or no interest in politics." The 큐 in 큐 세대 comes from the English work "quiet"; 세대, of course, means "generation," so 큐세대 literally means, "the quiet generation."
If you are interested in learning other new Korean words, there is a list HERE, on the Web site of the National Institute of Korean Language (국립국어원).
