B-boy

A B-boy or B-girl is a person devoted to hip hop culture, more specifically, bboying/breakdancing. The term originates with the first hip hop DJ, DJ Kool Herc, who, noticing the reaction of some dancers to his playing the part of the record with a drum break, named them beat-boys or B-boys. It quickly came to include any follower of hip hop, identifiable by clothing habits, listening tastes or lifestyle, but has returned in latter years to the more specific usage in connection with dance.

Overview
There are four basic elements which form the foundation of B-boying. The first is Toprock, a term referring to the upright dancing and shuffles that B-boys do when they enter a circle. The second element is the Downrock or Footwork, refers to dancing performed on the floor. The third element, is known as the Freeze, refers to the poses that B-boys throw into their dance sets to add punctuation to certain beats and end their routines. The fourth and final element of bboying is the Power moves. These are acrobatic moves normally made up of circular motions where the dancer will spin either on the floor, or in the air.
A related dance form which influenced B-boyings Uprocking / Rocking / The Rock Dance, also performed while standing, and a style of dance in which both dancers fabricate ways of beating the opponent using fictional weaponry and embarrassing situations in rhythm with the music (Burning). This style involves moves called Yerkes (pronounced /ˈdʒɝːks/ "jerks") which are a set of motions executed to the break of a track and are where most of the battling occurs, outside of the break of a track is where the freestyle element of the dance is executed with great musicality throughout.