What is b-boying or b-girling?

Breakdancing, also called b-boying, b-girling or breaking, is a style of street dance developed by African American and Puerto Rican communities in The Bronx, New York City, United States.

Breakdancing consists mainly of four kinds of movement—toprock, downrock, power moves, and freezes—and is typically set to songs containing drum breaks, especially in funk, soul, and hip-hop. Its modern dance elements originated among the poor youth of New York during the early 1970s. It is tied to the birth of hip-hop, whose DJs developed rhythmic breaks for dancers.