Fanking 

Fanking - The art of creatively changing the meaning of a products name by photographing it near your crotch as developed by Moog. Fingers may be used to cover parts of words to give the product name a new dirty meaning or use.

Fanking "Sno balls" works even without covering the "S" to create "no balls".

Fanking by mchristjr1983 February 27, 2017

flanging 

shagging a girl with her knickers on

lifting the flange

i gave that girl a right good flanging

flanging by Prof Stretch April 5, 2006

Flinking 

To spod naked; chatting online without any clothes on.

Is he flinking again? That boy can't seem to keep his clothes on and chat at the same time.

Flinking by widget May 13, 2005

Flinking 

1. Spacing out.

2. Neither Floating nor sinking.

1. "Wake up. You were flinking."

2. "That balloon with a rock tied to it is flinking."

Flinking by emainiac September 16, 2008

Flakking

In the Unreal series of fps games, the act of spraying Flak cannon, rocket launcher, Instagib, or Biorifle shots over a large object or past a blind corner in the hope that such fire will cause a frag. Usually practiced by newbs and llamas.

Player: FFS stop flakking down the main corridor! You're just blocking the main access to the ball room!

Flakking by ps10n1c April 16, 2003

Flunking 

Most commonly known as 'Pencil Flunking'
The game in which a person runs into any given room with their eyes closed, and jumps with their arms by their side and legs tight together to form the pencil shape. The jumping is done while unaware of what is found in the room at the time e.g furniture or people, so often leads to injury and damage to goods.

'How was the party last night?'

'Not gunna lie man terrible, I ended up flunking the back room to get it going. Broke a table.'

'Nice man.'

Flunking by Freedale18 October 9, 2011

franking 

What I do to your mom an a daily basis

Dude you know that I frank your mom like everyday right?

franking by Stephan Baldwin September 28, 2004