Cropper /(kr?p"p?r)/

Crop·per

Cropper

n.
  1. One that crops.
  2. A variety of pigeon with a large crop; a pouter.
  3. A machine for cropping, as for shearing off bolts or rod iron, or for facing cloth. (Mech.)
  4. A fall on one's head when riding at full speed, as in hunting; hence, a sudden failure or collapse. [Slang.]