Koreans not only like to go out to a lot of different spots when they go out, but they also stay out really late. After going to a bar or a club for a few hours, it’s inevitable that you get hungry. What better place to go to eat than underneath an orange, outdoor tent? These street food tents with plastic tables and chairs are called pojangmachas (포장마차), literally meaning “covered wagon.” Here, you can feel some of the emotions of Koreans as they discuss the events of a long work or school week. Though not a huge area, one of my favorite spots to go is on a Thursday, Friday or Saturday night in Itaewon near the subway station. Come by after visiting some of the Itaewon bars or clubs. Even at 4 in the morning, this area is hopping.
While having green onion pancakes (pajeon, 파전) , tempura (튀김), Korean style sushi (gimbap, 김밥) are good choices, I recommend trying some lovely chicken gizzard (dalkddongjip, 닭똥집), spicy rice cakes (tteokbokki, 떡볶이), or Korean style intestines filled with noodles (sundae, 순대). This is also a perfect spot to grab some more cheap beer and soju to keep the night running.
For more information: http://travel.cnn.com/seoul/drink/pojangmacha-guide-039741