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
by vscreams April 9, 2022
by Tool man April 23, 2018
She had taco bell earlier in the day, but the good ol' Kentucky thumb will prevent any accidents from happening in bed tonight.
by awesome gamer. May 20, 2021
A dorky guy trying to be cool on the internet by talking smack to people for random thrills. This person is usually found annoying by everyone. He could be playing an internet game, leaving rude youtube comments, or spamming lameness upon social networking sites.
by MJwins June 23, 2010
i gave her the Kentucky thumb
by rico the destoyer May 20, 2021