The word's "Norwegian". It's the adjective form of "Norway". In this title its refering to the Beatles song by the same name. It's a book by the somewhat famous Japanese author, Haruki Murakami. I read the English translation of course though. In the book, there's a character named Midori, and she has a very assertive, or might I say, adamant, personality. I thought you might be referencing it.
Anyways, as for the book itself, it's an easy read, and explores the feelings one has in their youth, and the nostalgia has for them later in life. I'm only 20, so at first I felt like I was too young to read it. It's very explicit, so it's not for those who're uncomfortable reading about such things.