SFW

Subs fucking where? Used in the anime community to express displeasure for a lack of subtitles for a certain series.

Anonymous 1: The raws for the new Eva movie are out.
Anonymous 2: SFW?

SFW

So Fucking What
title of a horrible teen angst movie from 1994, with stephen dorff and reese witherspoon

guy1: hey, i watched so fucking what last night
guy2: so fucking what?
guy1: exactly

SFW

SFW is an abbreviation for "so fucking wankable" or "so freaking wankable," describing the attractiveness of a girl.

Wow, that girl is SFW!

SFW

Sorry for winning

Duh! Winning! SFW!

SFW

Stands for "So Fucking Weak." - The ethnic people's alternative to saying "LOL" aloud.

Keisha: So I found out he got thrown in jail. SFW

SFW

Stay strong, Forever strong, We strong. A term used when trying to encourage someone, or used when congratulating someone.

Example:
Brandon: Hey, my grandma just got out the hospital.
Jake: SFW, man.

Example 2:
Lila: I just gained 900 followers on insta.
Rebecca: SFW, girl.

SFW

(It's a) Small Fucking World

I know one person in SAF, she's a back cracker. What?!? She was your chiropractor when you lived there? SFW!