It simply means "shock", something Brian Warner, AKA Marilyn Manson, has become quite good at.
It is arranged among other symbols in his live performances as a statement of today's America and how we have become, in many ways, like the Nazi Party of Hitler's time.
It is all about going to an extreme to awaken those who are so complacent or insouciant that they can not see where we are being led.
As this image says. It is self-explanatory.
http://i212.photobucket.com/albums/cc97/MalcoNewYork/mmremixssfo3.jpg
Marilyn Manson is a brilliant artist who puts into plain English that which many scholars have been pontificating for centuries.
Here is a sample....
re-write the constitution
it says define a revolution
the end is here
if you're a part of the institution
you're not a part of the resolution
bow down to fear
i am the president
we own the world
i am the king of the world
the only good god is a dead god
the only god good for me
the only good god is a dead god, baby
the only damn god i need
dont draw your own conclusion
submit to the grand illusion
get on your knees
there will be no absolution
no final step of evolution
the end is near
Chorus
your world means nothing to me
you say what you think
stand on your kings
and when you're all done with me fulfill your own prophecy
gnaw skin off my teeth
Chorus
i killed your king of deciet
chaos, come onto me, i am free
and when you're all done with me
consumed by your own f#%$*&g greed
you'll see