"That those who delay the graduation of college until they can be employed." is "NG족"(エンジジョク) in Korean.
Group of NG "NG" is an abbreviation of 'No Graduation', will be referred to as that of people who delay the graduation of school (mainly universities) until you can employment in this way. In order to become graduated that there is no job to "freeters", you can go to college even if you get a unit, people to stay in school by or leave of absence often. 'No' there is a negative image in the word.