The act of penetration with the thumb. Similar to the act of plugging a hole in your neck with said thumb. The most badass thing a man can do.
by Soul0rison May 20, 2021

A Black Thumb is the male equivalent of a black widow. It's a toxic, narcissistic man who is poisonous to everyone he encounters, much like Henry the VIII. His heart is black as the underworld, and he's as attractive as a thumb, hence black thumb.
by Siouxsie Supertramp September 26, 2023

by Hank the Yank June 30, 2016

You know who I'm talking about — cana-duh-ans (save a few provinces). They'd have everyone believe & most insultingly, themselves (so good they are at self-convincing), that they're this moral, upstanding people that does everything justfully at a cost of being too polite & quaint to achieve anything.
The former, they are NOT.
The former, they are NOT.
Gee, look at these thumb-twiddlers. You can tell they're satisfied with what they have & yet still think they're better than everybody else.
by mrdabbleswithpotion December 19, 2021

When you shoot a women in the neck during sex and proceed to violently fuck the shit out of her neck hole with your thumb shaped dick.
"Hey did you see that Brandon Herrera porno where he gave her the Kentucky Thumb?"
"No Brian. Why the fuck would I want to see that"
"No Brian. Why the fuck would I want to see that"
by Solver20 May 20, 2021

man: why do you have your thumbs up in every photo?
girl: because i’m loyal to my girl and my girl only
girl: because i’m loyal to my girl and my girl only
by lgbtq.com August 11, 2022

A meme created from the insanity of what happens when you fire faulty SLAP rounds and you gotta shove your thumb in the hole your gun just made
by Isaak24 May 20, 2021
