'Liskeard Corn Handle
When you peel the husk off a cob of corn but leave it attached at one end, eat the corn from the cob, and holding on to the husk you force the cob up your partner's ass in a thrusting action to force whatever sex toys you're using that much further up for insane pleasure effect.
(At a swinger's picnic) - "Those benwah balls are doing nothing for me anymore." "Oh no? Here, take this cob and give'r the old 'Liskeard Corn Handle!"