By super duck, you you mean a shrug? I've heard it described Like "a super duckunder" ?

before showing a super duck to the kids i coach i first teach them how to hit a 2 step duck under from inside control or elbow control. a 2 step duck is just starting the duck under and than changing direction to the other side. after they get that down for a few weeks I show them the super duck. first time is when someone post on your head and you use the windmill action with your back arm to clear the arm posted on your head. i than show them when someone grabs your wrist how to use the windmill action to duck that arm. the best example of a 2 step duck that i've ever seen is by Jayson Ness from Minnesota in the NCAA finals a couple years ago.