What does it mean to rush the tiger and rabbit on the calendar?

In the calendar, chong generally refers to the collision between the zodiac, that is, six reds. The twelve zodiac animals are Ugly Son, Yin Mao and Tatsumi. The so-called six reds are the meridian collision, ugly does not collide, Shen Yin collides, Chen Xu collides, the fourth collides and You Mao collides. Chong means not conforming. As far as the twelve zodiac animals are concerned, they are Rat Ma Chong, Cattle and Sheep Chong, Tiger Monkey Chong, Dragon Dog Chong, Snake Pig Chong and Rabbit Chicken Chong.