The process of sticking your thumb in a wound from shooting a 50 Caliber SLAP round and it horribly wrong or sticking your fattest thumb in someone for sexual pleasure.
by DSarge May 20, 2021

A Supernatural phenomenon in which you say “SLAP” 3 times to the mirror in the dark. Upon completion you will taste eggplant and Scott will commit sodomy on you with his thumb.
by Hunter The Beast May 20, 2021

In the context of an online dating profile this means a guy with a thumb sized penis that masturbates constantly
by Lzeb October 2, 2019

by Thumb hug December 21, 2017

Trump: "Yes, it's true - a grabbed her by the pussy!"
Guy talking to Trump: "That's it? You mean you also didn't give her a Backwards Thumbs Up? I'm...disappointed!"
Guy talking to Trump: "That's it? You mean you also didn't give her a Backwards Thumbs Up? I'm...disappointed!"
by joe995 October 5, 2024

When you have your thumb facing up on the couch trying to hit a bullseye on your wife's backdoor as she sits down and misses the hole and jams it bad.
by The bad santa (dirty eggrole) September 12, 2022

The act of drumming on a desk or whatever your hands are over with the edges of your thumbs while your palm faces down.
John: wow whats with the blisters on your thumbs?
Mike: had an epically intense thumb drumming session yesterday...
Mike: had an epically intense thumb drumming session yesterday...
by iamalion1467 December 7, 2009
