Its called "street dance" because it originated on city streets in the late 1980's and early 1999's. It was a way for gangs to stop trying to kill each other. :)
There is no specific name for a dance in cheerleading . It tie's together with the rest of the stuff they do . So there for it is called a routine . But there is different sections , like stunts ,...
OK, basically Hip-Hop is called that because the moves involved in the dance involve moving the hips and the body quickly. hop basically refers to the fact that parts of your body pops in and out...