noun:

• arrears; late fee; delinquent account charge

ichidan verb / intransitive verb:

• to stray from the right path; to go wrong; to go off the rails; to turn delinquent

noun:

• young mother (i.e. early twenties or younger, sometimes previously a juvenile delinquent) - ヤン is from ヤンキー or ヤング ➜ ヤンキー・ヤング