The Kentucky plug is a sexual act in which you will start having sex normally with your girlfriend, and halfway into it you will play 4:29 on Kentucky ballistics video my 50 cal exploded as you shove your thumb into her ass as hard as you possibly can.
Kentucky plug - verb - The act of using a thumb to fill a hole. Most commonly one's own thumb however, it is not uncommon to plug another's hole with the "Kentucky plug".
*calls 911*
Me: uhhh hello my gun exploded and there's a massive hole
911: alright sir calm down, you are equipped with two Kentucky plugs.
Me: wtf is a Kentucky plug?!?
911: sir, please turn your thumb towards the open hole insert it completely into the hole.
Me: *passes out from blood loss like a normal human*
The sexualact of inserting ones thumb into any exposed bodily orifices to provide stimulation to an open wound.
(It has also been known to cause death prevention).
She super glued my furby so when I shoved it up my ass it proceeded attach to just rectum. When I pulled it back out my ass was squirting blood, so my girl gave me the Kentucky Plug to stop the bleeding and saved my prostate.