Best Dirtbag Bar?

You're in sweatpants and a filthy Pens hoodie. Payday is 3 days away and you have $83 in your pocket. You had an extremely shitty day and you just want to unwind with 9 or so rail vodka tonics in the darkest, cheapest, nastiest dump in the Burgh.

Where do you head to in order to accomplish this noble goal?