It's a song, it's a book, it's a type of wood and it's also... a rude innuendo.
The song: a Beatles song based on John Lennon's extramatrital affairs and perhaps paying a little too much attention to the decor of his mistress's dwelling?
The book: a 1987 novel set in the 1960s. It's about a guy, Toru, who looks back on his days at university and the two relationships he develops with two very different women. It's a nostalgic story about the loss of love - but it is not JUST a love story. Oh, and one of the girls likes the song...
The wood: aparently it's a type of cheap pine?
The rude innuendo: you figure it out (clue: personify it).
"I once had a girl, or should I say, she once had me...
She showed me her room, isn't it good, norwegian wood?
She asked me to stay and she told me to sit anywhere,
So I looked around and I noticed there wasn't a chair.
I sat on a rug, biding my time, drinking her wine,
We talked until two and then she said, "It's time for bed"
She told me she worked in the morning and started to laugh.
I told her I didn't and crawled off to sleep in the bath
And when I awoke, I was alone, this bird had flown
So I lit a fire, isn't it good, norwegian wood."