ball-breaker

Definition

ball-breaker rate

(Adult / Slang)

1. A hard taskmaster; a hard-to-please boss.

2. A domineering, castrating woman or a nagging wife, one who saps or destroys masculinity. Synonym: nut-cruncher.
See also: ball-tearer.

Quotes:

(1) Jonathan (Jack Nicholson) to Bobbie (Ann-Margret) in Carnal Knowledge (1971): 'Is this an ultimatum? Answer me, you ball-busting, castrating, son-of-a-cunt bitch.'

(2) Taylor Christopher (Kathy Ireland) playing pool with a redneck in Amore! (1993):
-- Redneck: ' She's a real ball-breaker.'
-- Taylor: ' You don't have anything to worry about.'