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

When you shove your thumb in someone's hole so hard, and with such stamina, that you literally stop them from dying.
It's a good thing Scott was able to Kentucky Plug himself, or else we'd have had to hear all about how his dad did it to him - that that would've been an even weirder boner.
by tangoprime 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 jam your thumb into a girls vagina. Named after Kentucky Ballistics who jammed his thumb in his neck to save his life.
by SlimGrim602 May 20, 2021

An Anti-Safety device used in historical steam engines, allowing for the elimination of the traditional fusible plug, for the operation of a boiler with less water than conventionaly allowed.
Dat Tweedy Wun Fiddy musta been running a Andover Soft Plug last week because I swear there wasn't a drop of water in the glass.
by ADENGINEER October 15, 2022

Whilst having intercourse in the default “doggy style” position , a thoughtful gentleman inserts his thumb into the “third hole”
@recon_136
@recon_136
by Recon136 May 20, 2021
