ball-buster

The term ball buster (or ballbuster) is a slang expression used to describe a person—traditionally a woman—who is perceived as excessively controlling, demanding, or domineering. It is also frequently used to describe a task or activity that is physically or mentally grueling. The phrase originated in the United States around the mid-20th century, deriving from the imagery of "busting" (breaking or crushing) testicles, metaphorically implying the destruction of male virility, confidence, or physical comfort.

Usage of the term is contested largely due to its gendered implications. Critics argue that the term is sexist, as it is disproportionately applied to women in positions of authority to frame their assertiveness as an attack on masculinity. In this view, the term equates female competence or strictness with male castration. Conversely, others may use the term generally to describe a difficult situation (e.g., "that exam was a ball buster") without intending gendered animosity, or use it among men as a form of ribbing. Some women have also sought to reclaim the term, wearing it as a badge of honor to signify toughness and a refusal to be pushovers.

Example:
"After the manager reorganized the department, some employees complained she was a ball buster, while others appreciated her efficiency."

Example:
"Installing the drywall on the ceiling was a total ball buster; my arms were sore for days."