When you stick your thumb in a female's asshole while you're banging her doggy style. If she complains, you say it was to keep your thumb warm.
Bro, I was banging this chick doggy style behind a dumpster for hours and I gave her a thumb warmer. She was into it.
by JT Return of the Mack 9797 May 25, 2025

Taking your thumb and putting it in your bf/gf's holes, take your pick
"I just gave my girlfriend the good ol Kentucky thumb"
"I just gave my girlfriend the good ol Kentucky thumb"
by ALLOFUS_ May 20, 2021

The inability of the thumb to function properly after completing 78 laps on Monaco in F1 game with a controller.
Usually lasts for 5 minutes.
Usually lasts for 5 minutes.
by Nuttella_maker October 21, 2023

by Bubba G Dang May 20, 2021

The act of ducking your thumb down just as you're about to shake someone's hand. If done properly, your hand will slide past theirs, and they'll be left awkwardly grabbing your wrist, looking very confused.
by Joel E. Rogers February 16, 2009

Getting choked out during sex by your partner or self from a thumb being applied to the jugular in a fashion similar to the lifesaving technique used by Kentucky Ballistics.
What’s that bruise from?
My boyfriend gave me the Kentucky Thumb last night after watching Gun Meme Review!
My boyfriend gave me the Kentucky Thumb last night after watching Gun Meme Review!
by FLgunMAN May 20, 2021

a term often used when having a thumb war. when your thumb is unnaturally larger than most peoples thumbs. Its what you choose to get when you are self concience about the freakishly large phalangie on your hand so you decide to "size it down". can also be used as a term to put down someone elses large hands.
by slyflyingninja January 13, 2011
