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

by Petegny March 24, 2020

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

A sex position in where you set a 50 bmg "Slap round" on your night stand and only pleasure you partner by jamming your thumb into holes.
In homage to Kentucky ballistics who saved his life this way.
In homage to Kentucky ballistics who saved his life this way.
Do you want to Kentucky Thumb tonight?
No my thumb is still sore from last time, and 50 bmg is expensive.
No my thumb is still sore from last time, and 50 bmg is expensive.
by SciFiGunFighter May 21, 2021
