"Without wait for a boyfriend who went to the army, that mingle with other men." is "고무신을 거꾸로 신다"(ko-mu-shi-nŭl kŏ-kku-ro shin-tta) in Korean.
It literally means "wear rubber shoes on the other way." When boyfriend go to army, and say that the women would be going out with other people not wait for the man. Gomusin once in Korea, commonly shoes that had been worn before. Wife to wear upside down the shoes when the escape from her husband, and the theory that because disguised as entered into the house and put a trail foot on the opposite, because wearing upside down in a hurry to get away, there is also a theory that. The "Gomushin" refers to a woman boyfriend is waiting be carried out in the army.