The Kentucky Plug

Most seen in “fauxcest” type of pornography, it is when one (most time a male depicted as fatherly figure or Uncle), sticks their whole thumb in another person’s anus (most times a female depicted as daughterly figure or Niece)

“The Kentucky Plug” - Noun -

“Karen, my lovely daughter,” says the father. “Tonight, Imma give you the ole Kentucky Plug.”

Version 1. To insert one’s thumb into another’s anus in a sexual way.