Top definition
The very bottom of the oven. Generally only used when all other shelves are already in use.
Phil: Aww man, the lasagne has taken up all the space in the oven. There's no room for the garlic bread.

Ralph: Don't worry bro, just use nature's shelf.
by Garden14 January 18, 2011
Get the mug
Get a Nature's Shelf mug for your cousin Jovana.