ffk 

in cantonese, it means 'fong fei kei'. which means those who betrayed or broke a promise/deal made with another party.

that girl ffk me, she promised to meet up here but she never show up.

dealing with ffk customers really fed me up.

ffk by hnndnn December 29, 2009

ffk 

ffk known as frequently flying kite (malaysian slang)
ffk is also known as 'fong fei kei' in cantonese

Is to break a promise, a deal or did not show up for an appointment

Orgin : Making a promise with a friend is similar to railing out a kite. If you keep your promise, means you rail back your kite hence keeping your friendship. To break a promise, is like cutting the line of the kite and it will fly away similar to loosing a friend.

We are suppose to meet up here but the fucker ffk me again today, this is the last time I am gonna put up with him.

ffk by nyxator November 20, 2011

FFK 

As defined nay a chopped contestant, a FFK is a former fat kid. Insensitive? I think not!

After being a contestant on The Biggest Loser, I have lost a total of 4 pounds and I am therefore proud to call my self a FFK.

FFK by KnobblyKnees December 7, 2018

Ffk 

slang term used to mean Friends for keeps or friend for keeps if you only got one.

Nelson and I are great buddies. He's definitely my ffk

Ffk by @Lwixe May 9, 2020

FFK 

A skateboard group that started outta NOPO,FL
FFK stands for FreshFlowKids

Did you see that kid i heard he was in FFK

FFK by Freezerburnz December 11, 2007

FFK 

Group of virgins who have never been loved and never will.

Friend : Are you part of the FFK?
Me : No lmao I'm not a massive virgin

FFK by FFKHater September 9, 2022

FFK. 

FFK.,which stands for Fantastic fuck Klub ,is a worldwide organisation created by RLR.They have a hand sign which is very well known.Members are well regarded

Do you want to join FFK. ?

FFK. by Mouse man September 8, 2022