The darkside of the arts.

I don't get it

lol sexual harrassment? i like it anyways

I don't get it, either.

That looks like a thumb rather than an eraser.

doubleyou tee eff, mate.

Rub one off?

That had a different definition back in college.

The eraser looks like it's frowning, is he sad? =P

is the one on the bottom being choked?

I don't get it.

It looks like the one dude is breaking the other's neck.

Um ... is this about ... censorship?
Are you trying to argue with the censorship of erotic images? (For example, these sketchpeople apparently doing it doggy style ... ?)
Or am I missing something?

If I'm right, it's a good idea, just maybe needs to be a little clearer. If I AM way off base, well, it's still a neat-looking picture, just very confusing.

I think he's intending to illustrate a murder, that someone got "rubbed out". I'm not sure that's an actual idiom though.