NSFMR 

Reddit acronym: Not Safe For Master Race (refers to Reddit PC Master Race users)

"Check this pic I took of using a crescent wrench to install a new CPU. Definitely NSFMR"

NSFMR by byslexic July 12, 2016

NSFMR 

Stands for Not Safe For Master Race.

So NSFW (not safe for work) is usually for things which when surfing the internet one might not want to look at at work; mainly pornography.
But in order to distinguish gore from pornography there is also the acronym NSFL, not safe for life.
This means even if one is not in the work one might not want to look because it is disgusting

The name PC master race is a parody of nazis.
The subreddit is a parody of people who play console games.
Because they often think consoles are superior to PCs.

The MR in NSFMR stands for pc gaming masterrace

That is, NSFMR is something which is disgusting / disgusting / cringe / alien for people who are enthusiastic about PCs and PC gaming .

Check this pic I took of using a crescent wrench to install a new CPU. Definitely NSFMR

NSFMR by plznothanks November 25, 2016

nsfr 

The acronym nsfr, meaning Not Safe For Ramadan, is commonly used as a replacement tag for nsfw (not safe for work) during the month of ramadan.

This post is pretty nsfr

nsfr by bae_yinah June 30, 2014

NSFM

Not safe for Mind. When something is so retarded that the usual facepalm is not enough to express the extreme disappoinment and frustration.

Finally the new Bieber's song is out!" *posts link* "Jeez spoiler that crap, it's NSFM!

NSFM by ixigia:face: November 6, 2010

nsfm

No safe for minors. Pretty much self-explanatory.

"That site has too much nasty content, it's nsfm."

nsfm by Iwakura Lain September 19, 2005

NSFM

Not Safe For Mom. It might be safe for work, but you don't want your mom reading it -- especially if it's on your blog.

Should I post this link to College Humor? I wouldn't say it's NSFW, but it's probably NSFM.

NSFM by Snjr7e923 November 29, 2006

NSFM

Not safe for Muppets; An outfit or a picture that would get banned on Sesame Street after Katy Perry was censored for her cleavage in her duet with Elmo.

Your Facebook profile pic is NSFM, too much boobage!
That top is so NSFM, I can practically see nipple!

NSFM by Rockstalker September 25, 2010