Rare weapon wielded by extra buff attractive Kentucky men. Once placed into your neck you are invincible for two hours and deal 5000 attack damaged to eggplants. It's commonly used during sexual activities, such as when the thumb is placed in the butt it quadruples its size and can hold back 60psi, Impressive!
The act of, rather than sticking your thumb in her ass while you're fucking her, you pull out, shove it in her ass, and plug her vagina with your thumb
"Brandon, you wouldn't believe it, last night I gave Megan the Kentuckythumb and she liked it"