bboy stands for break boy and is the only true dance of hip hop. The name was givin first by dj kool herc to his dancers at one of his famous parties. Break can stand for a few things. It can stand for when the dj played a song and extended the break for people to dance, and it can also stand for people trying to reach a breaking point in their dancing and trying to reach new limits. The media began to call it "break dancing" but that is not the correct name. Bboying started with top rocking and dancing at parties, then was taken to the floor by people like the nigga twins. Now over time it as progressed and become more acrobatic and has added new style. Bboying is an element of hip hop and is its own dance, but a lot of moves came from a variety of places including tap, jazz, gymnastics, capoeira, and yoga, and keeps on growing.
There are 4 original elements of hip hop. bboying, mcing (rapping), djing, and graffiti art.
Despite what the media and a lot of people think, bboying is the only form of dance in hip hop, then popping and locking were adopted elements to it. So if theres no popping, locking, or breaking, then its not hip hop. Britney Spears is not hip hop, thats what i would call street jazz. As far as music goes if there is rapping or djing then it is considered hip hop. And graffiti art is the use of spray cans and markers to design words and characters of your own and are usually done illigally on walls and buildings.