n. 1. One that crops. [ 1913 Webster ]
2. A variety of pigeon with a large crop; a pouter. [ 1913 Webster ]
3. (Mech.) A machine for cropping, as for shearing off bolts or rod iron, or for facing cloth. [ 1913 Webster ]
4. A fall on one's head when riding at full speed, as in hunting; hence, a sudden failure or collapse. [ Slang. ] [ 1913 Webster ]
n. A farmer who rents a parcel of land from its owner and pays a portion of the crop as the rent. [ PJC ]