\Pink"ing\, n.
1. The act of piercing or stabbing.

2. The act or method of decorating fabrics or garments with a
   pinking iron; also, the style of decoration; scallops made
   with a pinking iron.

{Pinking iron}.
   (a) An instrument for scalloping the edges of ribbons,
       flounces, etc.
   (b) A sword. [Colloq.]