It's ...horrible.

[Aubs]

This foul cesspool was lurking in the back of the fridge. I knew it was there for months, but I have ignored it. Well, with moving and all, I had to take it out. I took these pictures, and then nearly threw up. The whole house stinks, or it's migrated and begun growing in my nostrils.

Can anyone guess what this is?

And, yes, it was a foodstuff when I put it in the fridge. It was edible.