From a tidal wave: The very centers and very ends act together as a single (disconnected) wave; likewise the other four (the centers of the wave on each side) act together as a single wave. Typically and for simplest use the boys will be in one disconnected wave and the girls will be in another. For this situation an easy cue is "Boys in your disconnected wave - Swing Thru".
This definition is from SCVSDA Note Service by Bill Davis.
It is provided here for informational and educational purposes only.