In contrast to popular belief, the TRUE definition of a b-boy is not simply just a male breakdancer. The main difference between a breakdancer and a b-boy is that a breakdancer is one who uses the hip-hop art form known as breakdancing to get chicks and/or to show off to his friends that do not know shit about breakdancing or perhaps anything about hip-hop in general; in contrast, a b-boy is one who expresses himself through breakbeats (beats that b-boys can break to) using various combinations or sets of breakdance moves such as:
-downrock (e.g. 6 step)
-freezes (e.g. single hand baby-freeze)
-power (e.g. flares)
-airtracks (e.g. UFO)
A true b-boy will add his own style to these various sets. These sets are innovated by b-boys through rigorous dedication and practice during "session" or breakdance practice. Any set that is “taken” or “copied” from one b-boy by watching another b-boy/b-girl is called a “biter”.
A real b-boy will break anytime, anywhere, and any day, when challenged or "called out" by another dancer or b-boy/b-girl in a "battle". In many cases, a b-boy will encounter a dancer or another "b-boy/b-girl" that is "straight up whack" or simply disrespectful, in which case a b-boy will wish to "serve his/her ass". But in many cases, a battle between a b-boy and another dancer or b-boy/b-girl, will have both sides showin' much peace, love, respect and even props.
Simply put, a b-boy is one who encompasses the essence of hip-hop through “the dance” or "b-boying". Thus, most b-boys think that krumpers are just plain whack.
B-Boy Hong 10 has created a monopoly on all power moves the involve the use of one's head. ~B-Boy Jason Ko
Source: B-Boy Pono, Madison, Wisconsin