FK 

FK means French Kiss in short

Custo: trid FK pol?
(do u want an FK pol?)
Pol: int pufta anzjan mur xuttja l em bil kontra a pes pufta anzjan u l FK mur tija l misssssssssssssirek duk il pufta l ihor a pufta l int
(polish reply..)

FK by Karist April 3, 2008

FK 

Flag Keeper. The title used for the student of the Faculty of Environment at UW. The FK is responsible for taking care of the es flag and keeping the memory of ES alive within the ENV Crew.

I'm not the flag bearer, anyone can carry the flag... I just keep it. I'm the FK

FK by yeeaaaaahhhhhhh December 14, 2010

FK 

1) An abbreviation for Fat kid
2) what you call a friend (affectionately) or non friend (who doesnt know what it means) when they do something a Fat kid would do (eg: scarf down food, fail to get up stairs, breathe super hard after running a short distance, etc)

Ex 1 :(while looking at an overweight classate you dislike )
Friend 1: He told me I was ugly!!
Friend 2: Ha! are you kidding?! he's a total FK

Ex 2 : (Said to your friend while she scarfs down her burger)

Friend: haha FK moment

FK by Jess'sBFFWhoCantRidePixi September 3, 2010

FK 

Free Kick or Foul Kick.Used in Soccer when a player commits a foul, the opposite team gets a FK.

Team "X" scored there winning goal with a FK.

FK by Bakhsh June 29, 2006

FK 

FK = Free Kill
Used in the gaming world

Mikki: LoL, killed a bunch of people from the behind
NoX: -.-, FK's... really nice

FK by NoXstar September 21, 2005

FK 

An abbreviation for Fortnite Kid

Bob: Hey what happened to Jeff
Sam:Oh I don’t usually hang out with him anymore he’s kinda a FK now

FK by Jteller May 21, 2019

FK 

a popular character in song.

"F-L-A-M-E-R K-A-S-E-Y" (to the tune of Mickey Mouse Club)
Oh, whos the gayest one of all; who likes crembrule?
F-L-A, M-E-R, K-A-S-E-Y.
Who thinks afghanistan is north of Canada?
F-L-A, M-E-R, K-A-S-E-Y
Kaseys GAY! Kaseys gay.
now we know who likes crembrule!
So come along and sing the song; make fun of him all day.
F-L-A, M-E-R, K-A-S-E-Y, HES GAY!

FK by webster September 19, 2003