When you stick your thumb into a girls vagina during sex. Similarly to how Kentucky ballistics stuck his thumb into his hole when his gun decided to fuck him
by Cody Earnest May 20, 2021

The act of anal penetration with an unwashed member, plug, dildo, or otherwise insertable object after having had it inside another persons filthy unwashed ass.
(1) I can’t believe he gave me a swamp plug on the first date and never called me!!
I don’t even know what to do with his dirty but plug!!
(2) dad I can’t believe you gave mom a swamp plug on Christmas how did you even get anal from aunt Helena she’s been dead for years
I don’t even know what to do with his dirty but plug!!
(2) dad I can’t believe you gave mom a swamp plug on Christmas how did you even get anal from aunt Helena she’s been dead for years
by Just a rock’n’roll clown June 8, 2020

by Poontapper69420 May 20, 2021

During doggy style,plug your girl's anal cavity with your thumb while simultaneously slapping her ass with your opposing hand.
"Bro one time I used the Kentucky Plug technique on my girl and she shit all over my room...it was kinda hot though."
by Big swinging penis May 20, 2021

Putting a tumb up in someone's ass as deep as you can like your trying to stop them from bleeding to death due to a bad 50 cal explosion and you have severed your jugular.
by NeeD A BeeR 91 May 20, 2021

by trashtruck May 21, 2021

When you're doing her from behind, massaging her anus with your thumb and she starts to let go of her bowels. To save yourself from a poo volcano you jam your thumb in it til you are done.
Doing her doggy and massaging her anus with my thumb when she started to let her bowels go so I had to give her the kentucky plug.
by AussieRebelRob May 21, 2021
