When you want to give your girl life support by plugging her mortal wounds...in the bedroom.
"Oh hey Jim did you see that Scott from Kentucky Ballistics almost died when using slap rounds in a..." "Yeah i heard but it gave me inspiration for my best position ever.....the Kentucky Plug."
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.
She was on her period the other night, but I gave her the oleKentucky plug.