The act of using your thumb to seal your sexual partner's vagina while having anal sex on her period, as a way to not get your sheets dirty.
Man this bitch the other night... I don't know I guess it was her time of the month so I had to use The Kentucky Plug on her so I didn't have to wash my sheets in the morning
by Dryphu May 20, 2021

by Stick a thumb in it. May 20, 2021

A form vaginal or anal play, using ones thumb to "plug up the whole." This term is inspired by the popular YouTube channel Kentucky Ballistics. After suffering a nearly fatal .50 caliber related accident, the YouTuber stuck his thumb into the hole in his throat. So the term "Kentucky Plug" means to stick your thumb up your partner's hole, and plug it almost as well as Kentucky Ballistics plugged his throat.
by mydoodda May 20, 2021

I heard you gave the HR girl the Kentucky Plug yesterday. You probably should have washed your hands before shaking the bosses hand though.
by The wolf26 May 20, 2021

by Dakattack95 May 20, 2021

When you’re hitting a fat chick from the back and put your them in her just to keep her from yelling.
by Kentucky neck plug May 20, 2021

Plugging a hole in you neck with your thumb while your dad drives you to the hospital in your pickup truck before you bleed out.
When the sketchy ass .50cal ammo you bought on the dark web makes your gun explode and you have to “Kentucky plug” the hole in your neck with your thumb all the way to the hospital.
by SomeCop May 20, 2021
