"Kumquat group" is "낑깡족"(kking-kkang-jok) in Korean.
90s Orange Group ( 오렌지족 ) that of people who imitated. Not necessarily have economic as orange group, it is not possible to wrecked luxury cars, refers to those who took action similar orange group like taking the small car. In analogy to small kumquat in smaller size than the orange, it is said to have come to call in this way.