void cupboard
A cupboard in your home that is earmarked for putting odd items in. It usually starts as a regular cupboard but ends up with anything and everything. Mostly full of items that should have been thrown away or given to someone else but instead are kept because you think you may have use for them in 10 years.
I'll just put this tent in this cupboard. I'm sure we'll use it more than once. It's not as though we have a void cupboard.