buttocker

From buttock +‎ -er.

buttocker (plural buttockers)

1. (mining, historical) A worker who gets coal off at a longwall face.
2. (wrestling) One who uses the cross-buttock throw.
   • 1889, Walter Armstrong, Wrestling, page 199:

     It is a chip, however, always fraught with peril, as the slack hold of the buttocker, if he misses his aim, enables his opponent to gain a firmer grip, which he is certain to make the best use of in the commanding position in which he finds himself.

• Troutbeck