fnuff

A fast way of informing someone that you believe something to be "Fair enough".

Underachiever: I dont think I'm going to bother with college, I've got the grades but it's so much easier to just live off income-support
Anon: fnuff.

by Bloodbeard March 31, 2009

Fnugi

Fnugi is something thats stuck up your ass

Ah fuck my ass is full of fnugi, don't worry "it's just fnugi"

by ITS JUST FNUGI October 20, 2020

Fnuck

When you nut while u fuck

I just fnucked on my boyfriend

by Bear2016!! January 16, 2022

Fnur fnur

The childish snigger you immediately utter whenever anyone says anything that could remotely be interpreted as a sexual innuendo.

"The problem with cheap bacon is that is always oozes all that white goo."

"Fnur fnur..."

by mickeybread January 11, 2012

fnun

A fucking nun. An effing nun. Fnun.

Pronounced... (letter sound of F)-nun

Dude, check out that fnun.

by JFC.Chung April 23, 2008

fnuke

f-bomb, the 'F' word, fuck

I'm gonna fnuke all up in here.
or
What the fnuke!

by ErictheRedBeard October 16, 2008

fnucklesmuck

To shove your knuckles into a womans fishy cooch*
*smuck

Bruh my hand stank after I fnucklesmuckedthat stripper!

by Big bootie botched April 5, 2017