The C-Walk, AKA Crip Walk, originated in LA's Compton in the 70's. It is a hip hop dance started by the Crips gang. Originally meant to be a walk, not a dance, it was a way to identify whether you were a Crip. Watch this instructional video to learn how to do the Forward V. This move is hard to explain. It's like (for me anyway) going into a sideward V, and then a stepback.
Songs: Dem Jeans-Chingy
Arab Money (Remix)-Busta Rhymes