When you stick your thumb in a gurls butthole mis sex. While she is riding you reverse cowgirl and you slip your thumb in when she thrusts downward.
by Justoutathumbinit May 20, 2021

Using your thumb to plug any hole natural or man made, either to save your life or please your wife. See Kentucky Ballistics on youtube.
I had to use the Kentucky Plug to stop my bullet wound from bleeding out. Or, I used the Kentucky Plug last night, now she wants it everytime.
by luckinfooser May 20, 2021

When during sex with a menstruating woman, (or traumatic injury resulting in uncontrolled arterial hemorage) you jam your thumb in the hole to hold back the red sea.
"Man, Scott would be figgety fucked after the slap round if he hadn't deployed the ol' Kentucky Plug."
"Man, I got my red wings last night. It would've looked like a Kentucky Ballistics video if I hadn't pulled out The Kentucky Plug.
"Man, I got my red wings last night. It would've looked like a Kentucky Ballistics video if I hadn't pulled out The Kentucky Plug.
by Whistlin Dixie Normous May 20, 2021

by Chessus May 20, 2021

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*
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*
by Donut's pimp May 20, 2021

by Slashed1212 May 20, 2021

When a girl is on her period with heavy flow and you want to have sex. So you jam your thumb in her vagina to stop the bleeding and fuck her in the ass. The term originated from you tuber Kentucky Ballistics when he was severely injured, jamming his thumb into his would to stop the bleeding thus saving his life.
by IswearIwasDrunk May 20, 2021
