When you start fisting a girl in her pussy and then, with your other free hand, start fisting her up the asshole until your two hands meet inside her resulting in a "fist bump"
by fistbumper420 August 20, 2022

the art or punching someone in the face with a hand covered in Swiss cheese (ONLY SLICED CHEESE APPLICABLE)
DARREN "Did you see how he just punched him"
ARTHUR "No what did he do"
DARREN "He gave him the good old Swiss fist"
ARTHUR "No what did he do"
DARREN "He gave him the good old Swiss fist"
by boss mans boss May 4, 2025

When you enter the device that men use to wack off while at their in-laws house, insert ones fist into another individuals vagina or anus
Hey Richy, please fist my anus in the shower so that when it rains i get a hard on
Hey, wanna shower fist
Hey, wanna shower fist
by this is an anonymous account July 7, 2016

by Puscifer Spiceyweiner July 6, 2011

by Pedostar123 November 20, 2016

The act of stroking one's penis with such vigorous strength and aggression that it causes one's knuckles to turn white.
Bro, it's been so long since my girl let me hit that I had to give myself the ol' white knuckle monkey fist.
by Elfistothemagnifico March 29, 2023

by big narf May 22, 2021
