Using your thumb to plug a hole. (Yes, Any hole)
I blew up my .50 cal and I had to stick a Kentucky Plug into the hole in my jugular.
A sex position in which you shove your thumb inside your partner’s ass, replicating what YouTuber Kentucky Ballistics did to save his life after getting a piece of metal to the jugular.
I told her she’s getting the Kentucky Plug tonight.
The act of slamming 4 fingers minus the thumb inside someone's asshole with such force it dislocates the thumb leaving it in an upright position.
"Oh man i saw scott kentucky plug brandon so hard the other day they had to put scott's hand in a cast!"
When you girlfriends period bleeding is bad so plug her with your thumb and fuck her in the ass
Girlfriend tells you she's on Her period ....... " Don't worry honey I will just use a Kentucky plug"
Inserting your thumb into an orifice (generally the ass) of your partner.
Dan: what's your plan for Valentines day?
Wes: I'm giving her the ol Kentucky Plug
When a person lays over another person's shoulder and the 2nd person plugs the first's anus with their thumb.
Scott gave his wife the Kentucky Plug
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.