A fork of Rural Dictionary
Using your thumb to finger a vagina. A reference to Kentucky ballistics "my 50. cal exploded" in which he stopped the bleeding in his neck using his thumb.
yo dawg i was going down on this girl last night and i gave her the Kentucky Plug, she was moaning like hell after that.
Inserting ones thumb into the vagina or anus during sex A refrence to the Kentucky ballistics video "my 50. cal exploded
Fuck baby hit me with that Kentucky Plug