When you blow up your thumb with explosives so it swells and needs stitches, in order to use it sexually because your dick isn't big enough for her.
She was going to leave me because of my micro penis. So I threw some SLAPP rounds down range until my 50 exploded. Now my Kentucky thumb will keep us together for 2 more weeks.
by Kentucky Thumb May 20, 2021

When you're hitting it from behind and your slap her ass, to which she responds by yelling "just stick a thumb in it!"
by Captain Hazelwood May 20, 2021

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

i gave her the Kentucky thumb
by rico the destoyer May 20, 2021

She had taco bell earlier in the day, but the good ol' Kentucky thumb will prevent any accidents from happening in bed tonight.
by awesome gamer. May 20, 2021

Verb: The act of plugging a bleeding hole with your thumb in order to save your life.
Verb: The act of fingering a woman with your thumb
Verb: The act of fingering a woman with your thumb
"I'm going to give myself the Kentucky Thumb once AK Daddy finally finishes the AK-50"
"I'm going to give my wife the Kentucky Thumb this evening for our anniversary:
"I'm going to give my wife the Kentucky Thumb this evening for our anniversary:
by SadBoiBrax May 20, 2021

A sex position in where you set a 50 bmg "Slap round" on your night stand and only pleasure you partner by jamming your thumb into holes.
In homage to Kentucky ballistics who saved his life this way.
In homage to Kentucky ballistics who saved his life this way.
Do you want to Kentucky Thumb tonight?
No my thumb is still sore from last time, and 50 bmg is expensive.
No my thumb is still sore from last time, and 50 bmg is expensive.
by SciFiGunFighter May 21, 2021
