When you insert your thumb into a Connecticut girls ass while hittin it from behind. Giving you leverage for more thrust.
by Phat56Pat January 27, 2023
A term referring to the sticking of your thumb up a woman(or man) for sexual pleasure, calling back to Kentucky Ballistics .50 BMG accident, were his life was saved by his thumb. This term was popularized after the May 20th 2021 installment of gun meme review hosted by Brandon Herrera
by imadeanaccountjusttopostonce May 20, 2021
by Thisisntmyrsalname1 September 17, 2022
When you are hitting it from behind and have your thumb in her butt at the same time. Thumb-butting it.
by Blibicer November 26, 2017