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

The Kentucky thumb
by Squid303 May 20, 2021

by gbngh June 3, 2022

A high ranking individual in Project Moon's The Thumb, which is a Syndicate. a Capo ranks higher than Soldatos and just below Sottocapos.
Ryoshu: "That's a capo of the thumb.."
Dante: <He looks strong, Meursault, turn into Capo of The Thumb.>
Meursault: "It will be done."
Dante: <He looks strong, Meursault, turn into Capo of The Thumb.>
Meursault: "It will be done."
by 히스클리프 August 26, 2025

The guy has been growing things since he was a little fucking kid, he doesn't have a red thumb. Not all his plants die, and none die without cause or due to neglect. He takes good enough care of his plants, and though people can at least question his sanity, maturity, and responsibility (unlike some other people), there isn't anything about him that indicates he is an irresponsible person by nature.
by The Original Agahnim December 27, 2021

When a woman wears a left thumb ring it signifies she's a Lesbian, on the other hand, If a man wears a left thumb ring, it signifies he's gay.
Wow, she's wearing a Left Thumb Ring, no wonder all the gay girls are going for her.
Wow, he's wearing a Left Thumb Ring, no wonder all the gay guys are going for him.
Wow, he's wearing a Left Thumb Ring, no wonder all the gay guys are going for him.
by sharkmother September 14, 2022

Dave is constantly flooding pics of his crappy car on the Facebook group page. He needs the Likes. He's such a Thumb Junky.
by Bob Sweat February 20, 2018
