fw 

short for firewall, a network device/software to prevent intruders on your PC/MAC/network

net diagram |modem--fw--switch--pc|

fw by meathelmet September 25, 2005

FW 

abbreviation for Future Wife.

"She likes swedish berries? I think we found your FW."

FW by D-Rae February 19, 2009

FW 

Emails that fill up your inbox; emails that tell fabricated stories and then say "FW this 2 20+ peeps & your wish wil cum true!"; The most annoying things in the world, if you get them delete them without even opening them

FW this 2 25+ ppl in the next 15 mins or you'll DIE!!! A HORRIBLE, HORRIFIC AND PAINFULL DEATH!!!

FW by Glock21 October 6, 2005

fw 

contraction of forum whore. used primarily on steampowered

the l337357 of teh l337 are fw on steampowered.

fw by matthewr85 October 12, 2004

fw 

fw means flash warning ! it’s usually used in animation meme content or etc ! it’s used to warn the user that this may trigger than (since many people suffer from autism , etc) ヘ( ^o^)ノ＼(^_^ )

you shouldn’t watch this—it contains a fw !

don’t force yourself to watch content with fws !

fw by v0tary June 29, 2021

FW 

Fucking Whore who tries to act like a slut; Ugly

There were many FW's on the way to school.

FW by Eric (Immortal Tech) November 16, 2011

FW 

Short for Flirt Whore. The girls you'd think were the sweet innocent type but totally mislead you. They flirt for fun and they're good at tricking the guys into liking them.

"OMG! Stop being such an FW!"

"I got played by an FW again...damn"

FW by GottaHaveIt March 15, 2009