nsfwtf 

Something that is so wrong, that not even 'what the fuck'/wtf can describe it. It is said to be "not suitable for 'what the fuck'."

guy 1 - "Dude, you have to read this hentai clopfic. It has Spitfire in it"

guy 2 - "What? No! That's... it's nsfwtf. Just no. Ew..."

nsfwtf by Zerophyte January 19, 2013

nsfwtwt

the nsfw side of twitter. even though its supposed to be 18+ its full of 15 year olds with “18+ dni” in their bios and barely-18 year olds looking to start onlyfans accounts.

i went on nsfwtwt because i was horny only to see a bunch of posts made by minors. what the fuck have we devolved into?

nsfwtwt by chillzfundee May 7, 2021

NSFWFH 

Not Safe For Work From Home

Content, usually a photo that is inappropriate for the work place is deemed NSFW (not safe for work) as co-workers may be offended. With shelter-in-place rules due to COVID-19, many people are working from home with family present.

NSFWFH is the modern variation of NSFW.

NSFWFH by DrRascal March 28, 2020

nsfwftw 

Stands for Not Suitable For Work For The Win

nsfwftw.com is a site that has nsfw material and it is ftw!

nsfwftw by nsfwftw March 2, 2008

nsfwtwt

Twitter community for people being horny. Stands for Not Safe For Work Twitter

not new to #nsfwtwt
18+ only

nsfwtwt by slweeb December 16, 2020