HONG KONG — First, China’s consumers started boycotting South Korean cosmetics and other products. Then the Chinese government began blocking videos of K-pop bands. Now comes the latest weapon in Beijing’s battle against Seoul’s deployment of an American-made antimissile system: the anti-Thaad rap video.

The antimissile system, known by a cumbersome name, Terminal High Altitude Area Defense, or Thaad, is the target of a rap that warns South Korea: “How many times do I hadda warn you, my lovely little neighbor boy?”

“This time, kid, you going too far,” the rap continues in English, later switching to Chinese. “What’s Thaad — terminal what? It ain’t gonna terminate violence.”

The video, which had roughly 50,000 views on YouTube by Friday afternoon, features the Sichuan-based group CD Rev, whose members say they are influenced by hip-hop stars like Eminem and Dr. Dre. The group has also produced music videos about China’s claims in the contested South China Sea and Mao’s legacy.