Named after Kentucky Ballistics 50 BMG SLAP round accident where he plugs his open wound with his thumb. This sex move is done by slowly inserting your exposed thumb into a female's vagina.
"Hey baby, are you up for a Kentucky plug tonight?"
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"
The act of inserting one's thumb into another's asshole.
She asked me to put a finger in her ass, so I gave her that Kentucky Plug
The sex act where one of the participant uses his thumb to stop his partner's anal cavity from leaking after some hard core anal sex.
I heard Tobby and Kyle went all out yesterday, Kyle had to do the Kentucky Plug on Tobby after some rough butt stuffs.
When a person shoves their thumb down their partner's/own vagina when said partner/person is on their period. The 'Kentucky Plug' also applies to men who eat Chipotle or Taco Bell on a daily basis. The Kentucky Plug is not used for sexual enjoyment but for a tactical advantage over your enemy.
I watched Kentucky Ballistics stick his thumb down his jugular to stop the bleeding so I pulled a Kentucky Plug on my explosive asshole!
Thumbing a woman so hard that no pussy juice is able to spill out.
Damn, I had to change the sheets after pulling out the old Kentucky Plug last night...
Anal penetration where both the thumb and the penis are in the anal cavity while the receiving person is face-down ass up.
I gave her the Kentucky Plug an hour after uploading my video.