How to lose as much weight as possible in two weeks?

I've been on a diet for a year and I've lost 50 pounds, but the past couple months i've been at a stand still. I have a really special thing coming up in two weeks. I picked out the perfect shirt but it's a little snug. How can I lose as much weight as possible in the next two weeks? I can't afford to join a gym so it has to be something I can do at home