Double-Edge Blue Steel Song
Well pre-dating the Blue Steel look of Zoolander fame, this phrase refers to something entirely unrelated: a song of such depressing mood and portent that it could, figuratively speaking, drive you to put a double-edge blue steel razor blade to a very unhealthy use.
God, I am so depressed by this break-up, I just sat at home last night listening to Double-Edge Blue Steel songs.