fku 

shortened version of the words "Fuck You" generally used online.

hey ralphan00b fku cuz

fku by miGGi November 19, 2005

fku 

True response to Mizzou's chant MIZ-... Meaning "Fuck Kansas"

Brady: Did you hear that jayhawks drink their beer warm? Its because the only KU grad that knew the recipe for ice graduated. MIZ!
Will: FKU!

fku by william quantrill December 10, 2010

FKU 

fat kids united, a clan or a group of fat kids that think that they are ghetto

a bunch of fat kids being ghetto and making a clan, aka FKU

FKU by whit boi May 18, 2007

fkuc 

oops you spelled fuck wrong, sorry.

Aww FKUC i spelled the FKUCING word wrong!!!!

fkuc by Mr. Owl knows how many licks April 15, 2010

fkugiadfgdsjkl

A bunch of random letters.

"My cat walked across the keyboard and hit the letters "fkugiadfgdsjkl"'

fkugiadfgdsjkl by Tutee October 19, 2009

fku2 

response to fku - meaning, fuck you too.

example 1:
Steve: wtfbbq
Michael: kthxbye
Steve: fku2

example 2:
Steve: fku
Michael: fku2

fku2 by Anonymous Steve-o February 21, 2009

FKUs 

FAQs that purport to answer burning questions but only address the questions the author wants to address, or otherwise does a cursory job of answering burning questions in a way that demonstrates, consciously or unconsciously, clear contempt for the questioners.

The organisational announcement was followed up by an emailed summary with an FKUs document.

FKUs by syncopatico March 18, 2021