The song is about however badly somebody can put you down, spit on you, piss on you, push you around, bully you, make you feel small, tease you, rip you off, beat you up, make you look bad, embarress you, discriminate against you, wreck your stuff, tear your books (for the bullied schoolkids), take the piss out of your family, your friends, your girlfriend/boyfriend, your accent, your skin colour, your religion, your music taste, your sexuality, your actions. The list goes on, they always have something to fear themselves. You. This song is about how if they push you too hard, you will always, always fight back when you have nothing to loose. Come on bullet, and thanks for the music.
Keep on living.