by Massivehoginurface April 26, 2022
look he thumbs up in the picture!
by boombayahh June 10, 2022
While popularly used as the term for approval (thumb's down for disapproval ) Not many know that in rap or in Fighting word's thumb's up means safety off due to the motion of taking the safety off is putting your thumb's up.
by AllFatherOfFighting October 22, 2018
Book thumb is from holding open a book with your thumb and index finger for long periods of time, causing pain in your thumb muscle.
by blueberrypancak February 19, 2013
Shark Thumb.
The sexual act of placing you little finger (pinky) inside your partners anus (butt), while keeping all other fingers tucked in except the thumb that will stand proud and looks like a shark fin just slightly cresting the bottom of your partners posterior (butt) as they lay on their front.
The sexual act of placing you little finger (pinky) inside your partners anus (butt), while keeping all other fingers tucked in except the thumb that will stand proud and looks like a shark fin just slightly cresting the bottom of your partners posterior (butt) as they lay on their front.
During foreplay Sam Shark Thumb'ed meredith last night, meredith giggled as she looked over her shoulder and saw the shark fin (Sam's thumb).
by Samqwell December 31, 2019
by Oyeboman April 23, 2011