Hippo's serves a crowded Chicago-style hot dog: a steamed, all-beef, natural-casing wiener slid into a poppy seed bun and topped with mustard, onion, outrageously green sweet pickle relish, a dill pickle spear, tomato slices, sport peppers and a dash of celery salt. But Chicago-style isn’t the only dog in the house. There are loads of choices between a bun. The slaw dog comes heaped with coleslaw and mustard. Sauerkraut and relish top a New York dog. Local cultural sensitivity is evident with the inclusion of the coney dog. Big stomachs will crave an “Ultimate Dog.” That’s a quarter pound hot dog complete with Chicago-style toppings, sauerkraut and giardineira (hot, marinated vegetables) all smothered under double chili. You might want to bring help for that one. Or try a “Great Scot Hippo” — it’s double-sized. Open 10 a.m.-7 p.m. Monday through Saturday. No smoking.