1. A job or situation that is demanding and arduous and punishing
   "Vietnam was a ball-buster";
   - ball-breaker [informal]
    
2. A demanding woman who destroys men's confidence
   "His boss was known as a ball-buster, constantly pushing her employees to their limits";
   - ball-breaker [informal]

Derived forms: ball-busters

Type of: adult female, chore, job, task, woman