FIST

Army Acronym for Fire Support. The Army MOS of 13F is a Fire Support Specialist, they are also referred to as a FIST team on the company level or FISTer on an individual basis. A FISTers job is to seek out enemy targets and give coordinates to the target so our artillery can successfully engage the enemy from a safer location.

Man Alpha Co. has one bad ass FIST team.

by ISU Drew February 9, 2009

Fisting

To punch with the part of your hand that's exposed or unpadded in MMA.

Dude Rampage was totally fisting when he dropped Chuck Liddell with that hook.

by MMATermCoiner February 19, 2014

fisting

The act of inserting a fist into a man or woman's vagina or anal passage, often requiring a large amount of lubrication and leaves the ass with a prolapse

Last night was amazing, I ended up fisting Hannah's ass

by Louis2016 December 22, 2015

FIST

Acronym for Fuck It's Still Thursday.

I need a weekend, but FIST.

by pyropunk May 5, 2009

fisted

to stuff your whole fisted hand up a male or females tight yet shitty arse

barrymore fisted his friend

by teamster October 20, 2003

Fisting

1. 2 (also fist-fuck) trans. vulgar slang penetrate (a person's anus or vagina) with one's fist.

2. When a girl gets a fist shoved up her vagina. Hardcore 'fisters' will sometimes shove a fist up their ass.

When you go on pornhub and see the 'fisting' category

Person 1: Dude watch this girl get fisted!

Person 2: Holy shit that's impossible to do, i think im gonna faint...

Person 1: Look now!!! It's all the way in her ASS!!!!

Person 2: Fuuuuuuuuuuuuuuckkkkkkk...... *Faints*

Person 1: What... did you not like it? oh.........

by J.R.LG February 26, 2012

Fisting

The act of inserting one's fist into the anus of another individual resulting in sexual pleasure. This act often occurs among homosexual males.

Billy began fisting Timmy during their orgy with Sammy and Tammy.

by Etrain November 29, 2003