jagging
  參差
  Jag, v. t.  [imp. & p. p. Jagged p. pr. & vb. n. Jagging ] To cut into notches or teeth like those of a saw; to notch. [Written also jagg.]
  Jagging iron, a wheel with a zigzag or jagged edge for cutting cakes or pastry into ornamental figures.
  jag
       n 1: a sharp projection on an edge or surface; "he clutched a jag
            of the rock"
       2: a slit in a garment that exposes material of a different
          color underneath; used in Renaissance clothing
       3: a flap along the edge of a garment; used in medieval
          clothing [syn: dag]
       4: a bout of drinking or drug taking
       v : cut teeth into; make a jagged cutting edge
       [also: jagging, jagged]