THe footwork dance performed by Swoops (Bloods) to signal membership in the Blood gang. Compare and contrast the more famous Crip Walk. The Swoop Walk is slightly different and involves shuffling and jumping around, sometimes spelling out Blood or the local set with one foot while shuffling with the other.
The Crip yelled, "UHRIIIIP!" and in response the blood put on a red baseball cap and did the swoop-walk while throwing a B with his hands.