Sticking your thumb in a vagina or asshole and vigorously wagging it
“Yo dude, I thumb shuffled my girl last night and it saved me from doing any work”
An expression of awkwardness. When you find yourself suddenly alone, bored and with nothing to do. Can also be used to convey a feeling of abandonment.
“Where the hell have you guys been? I’ve been sitting here all night thumbing my nuts waiting for you!”
“Well I’m not gonna just sit here thumbing my nuts!”
When you put your thumb up a girls butt while doing it from behind, almost as if its a butt plug.
"Yo, did you and katie do it last night?"
"Yeah, she took the thumb treatment."
When your index and middle finger get tired while fingering so you use your thumb instead.
Last night I had to give her the good ol'thumb strum
when your 50. cal explodes on cam, your jugular gets punctured and your lung collapses, and you shove your thumb and shirt into the wound to stop the bleeding and losing other fluids
Guy 1:Did you hear Scott made another 50. Cal explode?
Guy 2: No, did he Just Put A Thumb In It?
Guy 1: Nah, it was for an experiment to see why his 50. cal blew up
One that constantly kills indoor plants. The opposite of having a green thumb.
Ann killed all her house plants. She has a black thumb.
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.
Her: Are you still dating Killian?
Me: That guy is a black thumb, I'm embarrassed I ever dated him.