Definify.com
Webster 1913 Edition
Pinking
Pink′ing
,Noun.
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.]