Noun

1. A small room connected to a threshing floor.
   • 1969, J E C Peters, The Development of Farm Buildings in Western Lowland Staffordshire up to 1880, page 97

     The cornhole was a small, brick room opening off the threshing floor, about six or seven feet high, […] variously known as the cornhole or cornbin, and was designed for flail threshing, holding the grain until it was winnowed.

   • 1981, J E C Peters, Discovering Traditional Farm Buildings, page 17 with illustration

     A small room may be found opening off the threshing floor on one side […] This is the cornhole, a mid-eighteenth-century development so far known only in Staffordshire and Suffolk, with a few in east Sussex.

2. A game similar to beanbag toss, popular in Ohio, in which a bag is filled with corn feed and thrown into a hole. See Cornhole in Wikipedia.
   • 2002, “Cornhole Game”,Cincinnati Magazine, October 2002, page 114

     Cornhole, the indigenous pastime of Cincinnati's west side, is basically a democratized version of horseshoes.

   • 2009, F. Winternitz, S. Bellman, Insiders' Guide to Cincinnati, page 230

     Cincinnatians, of course, know the true meaning of cornhole. The homegrown bag-toss game, which some suggest was even invented here, requires few tools: some beanbags, a box with a hole in it, and… well, that's it, really.

3. Anus.

Verb

1. To have anal intercourse with or to rape anally.

   "If you don't shut your whiny mouth, me and the boys are going to cornhole you until you bleed."