A sexual act where a person shouts "It's watermelon time" as they shove their thumb inside the other's rectum.
"I met this crazy unit at the range, we hooked up and I gave them the "Kentucky Plug" it was awesome. We even kicked eggplants afterwards!"
by Tea Recks May 20, 2021

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

The Kentucky plug , a sex position that the gun community do for pleasure. (Can only be performed by Scott from Kentucky ballistics)
by Rolyat Racso 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 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

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

The Kentucky Plug is a sexual act in which one person takes, and jams their thumb into any orifice of the body of their partner. This act can be done to assert dominance and is known as a "pro gamer move".
"My girl was talkin bout me havin a small pecker an all, so I gave her the ole Kentucky Plug right in the back door. she ain't gonna walk right for a couple days now!"
by THEBIGONEBOI May 20, 2021
