What does "chong" mean in the lunar calendar?

Chong generally refers to the collision between the zodiac, that is, six reds. The zodiac signs are ugly children, ugly children, ugly children, ugly children, ugly children, ugly children, ugly children, ugly children, ugly children, ugly children, ugly children, ugly children, ugly children. Chong means not matching. According to the twelve zodiac signs, that is, rat Ma Chong, Niu Niu Chong, Tiger Monkey Chong, Dragon Dog Chong, Snake Pig Chong and Rabbit Chicken Chong.