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 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
When a slap round sends parts of your 50. BMG Into your body and you jam your thumb into your neck to avoid forever sleep.
by that boy billy jenkins May 20, 2021
The definitions of "thumb-kin" are thumb-kins.
by Palec Smuk December 14, 2008
by kevo:) May 4, 2022
Paul: You still txting with Susan?
Peter: Hehe yeah...
Paul: Dude quit thumb fucking your girl friend and lets go.
Peter: Hehe yeah...
Paul: Dude quit thumb fucking your girl friend and lets go.
by Cheddarbox March 31, 2009
by veronica1292 February 5, 2017