A Sex position in which you shove your thumb into a women's anal region and your fingers in her nether region then you want to like the position 69 insert your penis in her mouth creating a plugs between her back and front you must do this while simultaneously using your other hand to fire a .50 caliber rifle
*PSA NO SLAP ROUNDS REQUIRES ALTHOUGH DO BRING THE FIDDY*
"Me and Karen did the the Kentuckyplug last night" "how was it" "we liked"
Sexual position involving the judicious application of one partner's thumb in a partner's orifice. The orifice in question need not be original equipment to the receiving partner.
She started spurtin' like a geyser, so Brandon gave her the ol' Kentucky Plug.
When you and your lady or gentlemen friend are getting intimate, and you stick your thumb into them, in assumably a nicer way than a man with a serrated vein would stick their thumb in themselves to prevent blood loss.