Can you get more of a dive bar than Gooski's?
Admittedly I've only done some day drinking here on a few occasions so I can't comment on the night crowd, but it's a good place to relax and have a few beers if you're passing through Polish Hill. They have a good selection of beers on tap with some quality brews, and their prices are lower than average for most.
If you enter during the day, you have to wait a few minutes for your eyes to adjust. Gooski's keeps it Dark inside. The first time I entered I wasn't sure they were open. But give it 5 minutes and you get used to it.
There's also a pool table in the back room and I've even seen the room used to show some very odd movie scenes, which tells you they like to mix it up there too.
Gooski's won't dress up for you, but it's the right place for good beer and some good people if you're in Polish Hill.