Sexual action involving the thumb in the womans Vagina with index and pointer spreading the Labia allowing the middle finger to articulate the citrous. the three fingers form a "K" (as in Kentucky) And thumb acts as a "plug"
I was watching my buddy scott's youtube and he said just "stick a thumb in it" sure enough I gave my GF the Kentucky Plug and had her in a euphoric daze
by SirShadowman May 20, 2021
Get the Kentucky Plugmug. When you discharge a firearm and the firearm explodes in your face and the only way to stay alive is to plug the shrapnel hole in your neck with your thumb until the ambulance arrives
1: Hey did you hear Scott’s fiddy blew up and he almost died?
2: Yeah, luckily he stopped the neck bleeding with a Kentucky plug
2: Yeah, luckily he stopped the neck bleeding with a Kentucky plug
by Tater Six May 20, 2021
Get the kentucky plugmug. 
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
Get the Kentucky Plugmug. During anal sex and the person getting fucked in the ass begins to shit all over the other persons penis
by Johndoewillams June 10, 2023
Get the Idaho drain plugmug. by Riddler5000 May 20, 2021
Get the Kentucky plugmug. 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
Get the Kentucky Plugmug.