noun
reformed delinquent; former yankee
Colloquial term for someone who used to be a yankee (juvenile delinquent) but has since left that lifestyle. Often carries a nuance of having matured or settled down.
彼は元ヤンキーだけど、今は真面目な会社員だ。
He's a former delinquent, but now he's a serious office worker.
元ヤンキーの先輩が、後輩の相談に乗っている。
A reformed former yankee senior is giving advice to his junior.