Not too happy with you using autism to call someone dumb, but I'll leave this up assuming it was just a one-off.
Definition of sash for Students. 1  1 : a frame for a pane of glass in a door or window. 2  2 : the movable part of a window.
Bride to Be Sash: 1  Hot Pink. 2  38 Inch x 4 Inch. 3  One size fits most.  100% Polyester.