When you press your thumb into her behind
She was moaning till he gave her the Kentucky Thumb, then she was screaming.
by DaveslifeYT May 21, 2021
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When you're hitting it from the back and you slip a thumb in.

Alternatively: then shrapnel from an exploding fire arm cuts your jugular artery, and you are forced you plug the wound with your thumb.
I was using those old SLAP rounds and the gun exploded! Had to use the ol' Kentucky Thumb
by Brandon's boy May 20, 2021
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Refers to Scott from Kentucky Ballistic's near fatal injury from a .50 BMG explosion that was averted when he put his thumb into a hole in his neck to stop the bleeding.
by BillNyeTheWesternSpy May 20, 2021
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verb.

The act of violently sticking your thumb into someone's bleeding anus.
"Brandon Herrera told everyone on YouTube that he loves the Kentucky Thumb. "
"After we used the dildo mounted a reciprocating saw last night, I had to give her the Kentucky Thumb"

"Just put a thumb in it... a Kentucky Thumb in it."
by Newton1391 May 21, 2021
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While having sex in the doggie position, a man will slap his partners ass and immediately shove his thumb in his partners ass
Yea man, last night was crazy in bed. We were going hot and heavy until i gave her the "Kentucky thumb"
by Gunther05071 May 20, 2021
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The kentycky thumb is when he puts it in the bum.
by AllyAx May 20, 2021
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