A Cardboard-Box - A tiny, broken-up place you live in, usually in a trash-fill

A tiny, broken-up place you live in, usually in a trash-filled city or a bad neighborhood. It smells like old pizza and regret.

My cardboard-box is so broken, my dog lives in the hallway.

I live in a cardboard-box because I can't afford a real house.

My cardboard-box is so bad, it has a leak and a ghost.