When you shove your thumb so far up you significant others vaginal cavity they will no longer have a menstrual cycle for a minimum of 6 months
Friend:Hey I heard you gave the Mrs. The Kentucky Thumb

Response:Yeah we'll be good for half a year
by The Kentucky Thumb May 20, 2021
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When one thumb is entered into a woman's vajina instead of a tampon or during intercourse while menstruating. This is all in reference to Kentucky ballistics rn50 accident, stick a thumb in it campaign.
She was bleeding all over the bed so I gave her a Kentucky thumb while we made out
by Shot shooter May 20, 2021
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When your .50 blows a hole in your throat and you have to shove your thumb in it to keep from bleeding out of your jugular
Scott almost died from his .50 but he gave himself a Kentucky Thumb
by SteamedHams99 May 20, 2021
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A form of erotic asphyxiation, in which someone uses the dominant thumb to jab into the throat of a partner (or self) to cut breathing and gain sexual arousal.

Also see Kentucky Thumb in the Bum: when a person inserts a thumb into their partners anus during scat play, to plug the flow of feces.
My relationship with Courtney has never been more alive ever since I gave her the ol Kentucky Thumb.
by Faithful Believer May 20, 2021
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the practice of inserting your thumb into a woman’s rear, just as Kentucky Ballistics did to save his life.
“Hey Josh, did you hear Brandon Herrera gave Megan Fox the Kentucky Thumb last night?”
by Brandon Herrera May 20, 2021
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sexual position in which you stick a thumb in your partner's hole (without discrimitation)
"Yesterday evening I gave her the Kentucky Thumb, but she said it wasn't very plesurable"
by Paul McCabbage January 19, 2022
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