fisteria 

When hysteria takes over and you just start fisting people

Oh no! It's an outbreak of fisteria!

fisteria by fluxuscapacitor May 20, 2016

fisterbate

When fisting someone anally or vaginally, placing one’s penis into the fisting hand and masturbating into the anus or vagina being fisted while continuing to fist. The entire fisting hand and penis are inserted into the anus or vagina.

Shawn fisterbated Alex.

fisterbate by LabelXM July 5, 2022

Fosterian

Something, someone, or nothing at all......that is all at once everything, something, and nothing all at once and not at all.

-----as manifested by your own mind.

Man 1:"look at that fosterian"
Man 2:"what fosterian"
Man 1:"that Fosterian"
Man 2:"Oh you mean those fosterians"
Man 1:"What Fosterians"

Fosterian by ghhgh June 6, 2009

Fisterbating 

The act of masturbating while fist pumping.

Bill: What do you think those douchebags from "Jersey Shore" do when no one's around watching them?

Ted: Probably sit in front of a mirror, looking at themselves, fisterbating to awful techno music.

Fisterbating by JKyleM22 February 24, 2011

Fisterbating 

A form of masterbation used by women inwhich they insert there entire fist / arm up there vagina.

Lissa, "When I get home I'm going to watch my favourite TV programme".

Amy, "When I get home I'm going to pleasure myself by fisterbating".

Fisterbating by Tom Hurd January 15, 2008

Fisterine 

The sexual act of coating ones hand with mouthwash (usually Listerine) and performing the act of fisting.

I tell ya Rod, my woman gave me the ol' Fisterine yesterday, now I'm walkin' funny .

Fisterine by Tim Crowbar October 25, 2017

Fisterbating 

Best accomplished with a partner with an enormous vagina; the act of jerking off while inside of her.

I'm telling you, this girl was so cavernous the only way I could get off was by fisterbating.

Fisterbating by Whitlash September 27, 2020