How people in London say the F word, sometimes people would pronounce it fark, Fock, fack or f*ck
All rite mate, fack, I forgot to show you my new Girlfriend
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1. fake hacking. usually done when using javascript commands such as

javascript: document.body.contentEditable = 'true'; document.designMode = 'on'; void 0

or using some web browsers' ability to edit the source code (ie Google Chrome's "inspect element" function).
this is done to edit the webpage, and is widely regarded as "hacking".

2. when someone (usually girls) opens up facebook on a friend's computer and see that their friend is logged in, and posts as that friend.

However, neither of these are actually hacking, as there is no permanent edit on the actually website itself, and the web server was not broken into to achieve this.
EXAMPLE 1:

mikecann (DOT) co (DOT) uk/wp-content/uploads/2009/05/img01.png

EXAMPLE 2:
jenny: "jsyk i'm bisexual so any guys or girls that wanna have some fun right now, hmu ;)"
claire: "are you serious?"
jenny: "no amy just hacked my account"
james: "THAT'S NOT FUCKING HACKING!"
jim: "it's facking. you just logged into her account from her fucking computer"
by 5-Name February 5, 2012
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to be drunk
am just facked buddy
by RedHotRaggle September 8, 2008
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1) The state of being both fat and jacked at the same time.

2) Used to describe someone who is big and strong, but a bit overweight. Often used to describe a person who used to be very muscular but has maybe let themselves go.
1) Yea, my uncle used to be a firefighter, but ever since he retired last July he's gotten pretty facked.

2) You probably couldn't tell through that flabby stomach, but Charlie is actually mad facked. I've seen him lift up a car.
by jsnowcharmander May 22, 2010
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1. To provide women for a party; to successfully set another person up with a girl
2. To bring something to someone

From the word "facilitate"
"I'm tryna fack some girls for the club tonight."

"Yo, fack me that bottle opener?"

by The Squirl August 23, 2008
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when some one gets mad and decices to call you a fucking fag. as if saying fag wasnt enough they also had to add fucking to it. but if you say it to fast it turns out to say FACK... lol :P
yo adrian what the hell were you thinking!!! are you a fack use you flippin brain!!!!
by mr.pebbles :P March 27, 2010
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used commonly by londoners, pronounced much like cant (not can't); both were used excesivly in the film "Quadrophenia", one of The Who's rock operas.
"you fackin' cant!"
"fack!"
"fack off! lets go an do some blues!"
by Sam the Kan May 20, 2005
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