I have been to Shorty's a lot and tried many different menu choices. I always do the pizza by the slice and have loved all I have tried (hamburger jalapenos and mushrooms; canadian bacon and jalapenos; buffalo chicken; pepperoni) and also buffalo wings and the chili cheese fries. The pizza is by far the best thing on the menu and everything is pretty much what you expect from bar-type food (greasy and delicious!).
Shorty's has a nice outdoor patio that allows pets and great happy hour/power hour specials. The 5-6 power hour is definitely the best time to go - their margaritas (wine-based) and sangria are only $2, their domestic half-pitchers are only $3 (about 4 beers), and their slices are only $1.50.
On their drink menu under the wines it says "our wine comes from a box, if you need to know anything else, you're in the wrong place" and I would say that's a pretty accurate description of their atmosphere. Very casual and fun - and great, greasy food!