Ug girl means hip hop girl. This word is not common in life. It is usually used to describe a girl who is good at street dancing, which means that the other person is a cool girl and very popular. Hip-hop is a kind of dance that originated from American black groups in the late 1960s and 1970s. It is not only an important part of hip-hop culture, but also has strong performance, participation and competitiveness. There are various movements in street dance, such as walking, running and jumping, as well as flexion and extension, rotation, circle, swing and wave-like twisting of joints such as head, neck, shoulders, upper limbs and trunk. These movements not only have the fitness effects of improving heart and lung function, reducing fat, enhancing muscle elasticity and ligament flexibility, but also can coordinate muscles in various parts of the human body, shape beautiful posture, improve coordination ability and cultivate aesthetic feeling. Hip-hop was introduced to China in 1980s, and gradually spread as a fitness active communication. It is not only a dance art form, but also a reflection of life style.