NSFH 

Not Safe for Humanity - Usually used to describe an extremely disturbing or overly adult thing that can and will scar, disturb and make hundreds of people go "What the crap!?"

$00pah NiN10Doh! Pokemon Snap XXX = NSFH

NSFH by ruff1298 February 26, 2009

NSFH 

The same as NSFW, but instead of work it’s not safe for home / house

That adult erotic art book you have isn’t NSFH, since you have children and all.

NSFH by Mass effect fan June 17, 2021

NSFH 

Not Safe For Homosexicles -- a phrase, image, video, or song that has the potential to offend faggots.

{Seen in the description of a YouTube video of a drone flight}:

I also added NSFH (Not Safe For Homosexicles) because one of the songs does have the potential to be mildly offensive to some members of the LGBTQ+ community.

NSFH by Telephony June 8, 2021

NSFH 

Not safe for husband

Yeah this pic is definitely NSFH

NSFH by john keener February 12, 2020

NSFHE 

Acronym for Not Safe For Human Eyes; Something so incredibly inappropriate or grotesque that it is not only unsuitable for work but for human eyes in general.

Goatse, Lemon Party, and Tubgirl are NSFHE.

NSFHE by John X. Doe July 8, 2005

nsfhc 

Not Safe For Human Contact !!!! something or someone sooo terribly horrible that they shouldn't be touched or be allowed to touch you because you might die or something like that.

dude 1: Jheeez that dude Cordell is NSFHC
dude 2: Why ?
Dude 1: Cos you might die if you touch him
dude 2: Wow i'm never going near him again
Cordell: Hey guys
(dude 1 and 2 run off)
Cordell: What did I say?

nsfhc by squirrel FTW!!!! February 14, 2010