人不犯二青年人不犯二少女
[rén bù fàn èr qīng nián rén bù fàn èr shăo nǚ]
Translates roughly as 'Humans don't do silly things except young teenagers especially teen girls.' This indicates recognition that adolescents may engage in whimsical, foolish behaviors, but implies it is less expected or excusable after adolescence. It carries some stereotypical implications.