Christian is one of two reoccurring characters that feature on 21st Century Breakdown. Whilst the activist Gloria, who is fighting to hold on to her youthful idealism, is a combination of frontman Billie Joe Armstrong and his wife Adrienne, the destructive, inflammatory Christian is the side of Billie Joe that he tries to keep under wraps. Armstrong told Q Magazine that the title of this song refers to

The sort of ugliest place you could possibly go in your brain. I don’t know if I was having a bad morning but it’s that angry feeling of despair that I guess a lot of people can relate to.

Green Day has come out and said that this is arguably one of the angriest songs that they have ever written. Armstrong told MTV News that

This is the most hateful song I’ve ever written – the most diabolic.