Buy in segments of the dress, and when cutting discover that the fabric is not enough - the inability to accurate calculation.
A perceived threat to, or reduction in, whatever is removed in the dream
A desire to get rid of or to not have to deal with whatever is cut off
Power imbalance, as in feeling powerless or victimized
Cut-off, a piece of cloth at all (especially canvas) - upcoming road. Cut-off: dirty, crumpled, with holes, hard-boiled, smoked, etc. - All sorts of obstacles and adversity on the road.