Yerk /(?)/

Yerk

v. t.

imp. & p. p. Yerked; p. pr. & vb. n. Yerking

  1. To throw or thrust with a sudden, smart movement; to kick or strike suddenly; to jerk.
    Their wounded steeds . . . Yerk out their armed heels at their dead masters.
  2. To strike or lash with a whip. [Obs. or Scot.]

Yerk

v. i.
  1. To throw out the heels; to kick; to jerk.
    They flirt, they yerk, they backward . . . fling.
  2. To move a quick, jerking motion.

Yerk

n.
  1. A sudden or quick thrust or motion; a jerk.