The termination of unwanted slave men varies across the female supremacist space-time continuum.
Most are quickly eliminated. Techniques range from gentle euthanasia to bullet to the brain.
Among the harsher societies there is a tendency to make execution punitive; as much to warn other male slaves as to satisfy desire for revenge.
Martial arts are a major passion of the women of this world. Practice begins when the young body become capable. Tournaments fill the year. The greatest martial artists are heroes.
The practice has evolved of providing slaves slated for termination as practice dummies to the women who win the major contests. Using an actual living body is believed to aid in the development of even greater skills in combat.
Slave’s meriting punishment this horrible are rare. Rarity has increased since the policy was adopted. Few men are willing to risk being kicked and beaten to death.