When you insert your thumb into another person's orifice, mainly the anus, resulting in pleasure. Usually only done during sexual activities, the phrase was made popular when Kentucky Ballistics 50-cal blew up, and he had to put a thumb in his next so he wouldn't die.
by Clint Yeestwood May 20, 2021

Sexual act of sticking your thumb into either one’s anus or shrapnel wound, this technique was accidentally discovered by a Kentucky man who had a really hot load ;)
by anonymous May 20, 2021

The sexual act of shoving your thumb all the way into your partners ass and going out with a bang. (SLAP required).
Scott: I don’t want to here about what happened after the party
Brandon: Well I gave her The “Kentucky Plug” last night
Scott: God dang it
Brandon: Well I gave her The “Kentucky Plug” last night
Scott: God dang it
by BackwoodsBandit May 20, 2021

The Kentucky Plug is a sex position where a thumb is inserted knuckle deep into a given oraphis in the human body. It was named after gun youtuber Kentucky Ballistics, who recently had a .50 BMG slap round explode and lacerate his jugular. In order to stop blood loss, he stuck his thumb in his neck, consequentially, the Kentucky Plug was conceived.
by Aqua_Tard May 20, 2021

by Brandon Herrera's Oral Notepad May 20, 2021

by TheAKSimp May 20, 2021

When you need to, for whatever reason, plug a human orifice with your thumb. Sometimes you need to Kentucky plug the hole in your neck that is rapidly leaking blood. Other times, you need to Kentucky plug your girlfriend's asshole because it's Tuesday and you haven't plugged it since Sunday and she's itchin' for a pluggin'.
Mr. Herrera: Scott gave me the Ol' Kentucky Plug last night!
His friend: dude... gay....
Mr. Herrera: No, this time he was just plugging a shrapnel wound in my leg...
His friend: What do you mean "this time"... Did he Kentucky Plug you some other time?
Mr. Herrera: *abruptly changes subject*
His friend: dude... gay....
Mr. Herrera: No, this time he was just plugging a shrapnel wound in my leg...
His friend: What do you mean "this time"... Did he Kentucky Plug you some other time?
Mr. Herrera: *abruptly changes subject*
by BicuriousOyster May 20, 2021
