The term 'Secret Chinese Society' refers to two organizations: Tongs and Triads. Tongs are secret societies that originated in China during the Qing Dynasty and were formed to protect members from persecution. Triads are criminal organizations that evolved from Tongs and are involved in activities such as extortion, drug trafficking, and money laundering. Both Tongs and Triads are still active today, although their activities have become more clandestine.