"words that represent the state in which the elementary school pops out vigorously square." is "초글링"(cho-gŭl-ling) in Korean.
It is a compound word of an elementary school student 초딩 and 저글링 (Zergling), expressed the view that elementary school students come out as scattered from the entrance of the school at the time of dismissal. The Zergling (저글링), was released computer game in the United States in 1998, characters that appear in "Starcraft (StarCraft)", Zerg (Zerg) is attacking style that comes in invaded as surging become a horde I say that. Elementary school students who finished the lesson is, by example how to come out to fly out from school to Zerg ring say in this way.