also: ノコべん
noun, noun or participle which takes 'suru'
staying after school to study privately
Colloquial abbreviation of 居残り勉強 (inokori benkyō). Used mainly among students for staying behind in the classroom or library to study on one's own after regular classes.
テスト前は毎日のこ勉してる。
Before exams, I stay after school to study every day.
図書室でのこ勉は静かで集中できる。
Studying after school in the library is quiet and lets me concentrate.