Okay ... I'm drawing a blank on this one. In the kata Suparimpei there is a move I call the "hankie drop of doom", and I can't think of a realistic bunkai for it. You can see it "in action" at the 3.30 to 3.40 mark of the following video:
I'd be interested to hear you thoughts on the "whole movement", but hopefully in particular you can address the dramatic opening of the fingers.