What the hell is up? This mark just won't come off. It looks like a smear. I figure the plastic may somehow have been damaged but I have kept it in the same place. There's a few spots where it is white.
 

I masturbated on it while you were sleeping.

Sorry about that...

looks like a jizz stain. Look, I know some people really love their consoles, but this is taking it a little far.

@big_jon: ah beat me to it!

Uhm.....er.........ah..........hmm....well.......

I'd assume it dried on top. I don't know, i'd imagine soap or toothpaste to clean it but the electronics are so close.

I looks like it got melted by something maybe? Have you put anything hot down on top of if recently?