noun
study guide; crib; answer key
Colloquial term for a supplementary study aid, often containing answers or shortcuts, similar to a 'cheat sheet' or 'crib notes'. Used especially by students.
See also: 虎の巻
試験前に友達からあんちょこを借りた。
I borrowed a crib sheet from a friend before the exam.
この参考書はまるであんちょこみたいに要点だけがまとまっている。
This reference book is like a study guide, summarizing only the key points.