Using ones thumb to stuff into an orifice or cavity, be it life saving necessity;(Scott of Kentucky Ballistics) or boredom; (Brandon Herrera:the AK guy)
...I felt a desperate throbbing wet sensation, so i stuffed the ol' Kentucky Plug in there, you know, the way kinfolk often do ...
by Alaskan Tundra Tyrades May 21, 2021

When a man is penetrating a woman anally so hard her anal wall ruptures and bleeds. the man then shoves his right thumb in to stop the bleeding.
by DiehardNick May 20, 2021

When you shove your thumb in someone's hole so hard, and with such stamina, that you literally stop them from dying.
It's a good thing Scott was able to Kentucky Plug himself, or else we'd have had to hear all about how his dad did it to him - that that would've been an even weirder boner.
by tangoprime May 20, 2021

When your girlfriend claims she can give you the "Kentucky Plug" it means she's a keeper, she's highly medically trained, and equally freaky XD so if anything happens I can guarantee she will put a thumb in it.
Woman: "hey baby, you wanna Kentucky plug tonight?"
Man: "of course! Ill go clean my barrel, and over pack my load"
Man: "of course! Ill go clean my barrel, and over pack my load"
by Skyler1 May 20, 2021

When your hitting her from behind after too much taco bell and you have to plug a leak with your thumb.
After ignoring his wife's warning about a funny stomach, Bill had to give her the Kentucky Plug to avoid ruining their brand new bed covers.
by A Bolter Weilding Guardsman May 20, 2021

Man I had my girl over after I went to the range and she was so excited she let me do the Kentucky Plug!!
by alynnjinn May 20, 2021

by Riddler5000 May 20, 2021
