B-boy or B-girl: A break dancer.
Crew: Group of break dancers.
Corkscrew: A spinning move.
Cypher: A dancer performs solo while peers react and judge.
Freeze: Stop and hold a position, usually with body in the air.
Go-down: A move to the floor.
Locking: Quick, continuous freeze and unfreeze, like someone in a strobe light."
Popping: A more fluid form of locking.