FKW 

Full Kit Wanker. Used to describe a sports fan dressed in more pieces of replica team kit than is necessary or acceptable for an adult. (note that children can never be FKWs)

For example, for football (soccer to the Americans amongst us) a shirt (jersey) is acceptable shorts and socks, however, make you a Full Kit Wanker.

Joe: I was walking through town the other day and saw a total FKW.

FKW by Lou O November 15, 2013

FKW 

The frustrated killer walk.
When a man is walking around like he is waiting for an opportunity to kill someone

Damn tuba walking with that FKW.

FKW by ThatOneBloke July 2, 2023

FKW 

Acronym used to define the lack of knowledge of a vehicle, item or person. It stands for Fuck Knows Where

Where is Fred today? FKW

Also used for runabout vans in the days before mobile phones

FKW by Mike Strivens January 20, 2009

FKW 

An abbreviation of the term “fuck women”, used usually by men when they are hurt or in their feels about a girl or girls in general.

“Bro FKW”

FKW by Itsfuckenzyzz December 27, 2020

fkwnd 

When someone gets fucking owned so badly that they just get fkwnd

"In more recent news, Ryan D was fkwnd by the sexy Jo"

fkwnd by Sir Joseph May 30, 2006