misspent youthSSYsomeone who had a misspent youth wasted their time or behaved badly when they were young – often used humorously 虚度的青春〔常为幽默用法〕misspent youth• Trying to make up for his misspent youth.• You can scarcely regret your misspent youth while still misspending it.
→ misspent youth at misspend(1)