synonymous with "do anal intercourse" by 1930s, apparently the reference is to a game played in the farming regions of the Ohio Valley in the U.S. from 19c., in which players take turns throwing a small bag full of feed corn at a raised platform with a hole in it; from corn (n.1) + hole (n.).
权威例句
1. Insert block heater assembly into corehole with element loop pointing Up.
将电热器组合插入中心孔,元件环向上.
2. O - ring of the spindle or corehole of body is damaged.
轴心使用O环受损或主体心孔损伤.
3. CoreHole at R . C . Beam for installation of pipes.
直梁上钻孔以便管道安装.
4. Coat edges of plug and corehole with Mopar Gasket Maker, or equivalent.
用mopar垫圈 油或等效产品涂抹活塞和芯孔边缘.
5. The intrinsic birefringence in circular core side - hole fiber is reported.