A sex position where, while hitting it from the back, you blow your load inside the woman's vagina, then yell "JUST PUT A THUMB IN IT" and without warming, slam your thumb into her asshole.
Scott had an explosive load and preformed the KentuckyPlug while having sex on a folding table
When you insert your thumb into another person's orifice, mainly the anus, resulting in pleasure. Usually only done during sexual activities, the phrase was made popular when Kentucky Ballistics 50-cal blew up, and he had to put a thumb in his next so he wouldn't die.
My girl came over last night and I gave her an explosive Kentuckyplug
Noun:
1. The off grid medical procedure of using ones thumb to plug a wound if no medical aid is close by and a tourniquet is not available or not practical in a life or death situation.
Slang Terminology
2. It has been brought to the attention of some that this is also a new sex position...
Stick a thumb in it, it will stop the bleeding...
or
"You're getting the KentuckyPlug tonight"