Doing the saltine shuffle requires a skinny white guy getting into a fight with a black guy. The white guy moves quickly as to not get hit, doesn't throw any punches and eventually wears out his opponent leading to a win.
Johnny: Bruh, did you see Ernie and Tyreke throw down at Sunnyvale Trailer Park earlier today?
Dave: Hell yeah, Ernie has mastered the art of the saltine shuffle. Tyreke didn't have a chance.