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Not Safe For Work.
Often used to describe porn, which will get you fired if caught viewing it in the workplace.
Fred: No one will notice me looking at this NSFW stuff!

Andy: Fred, is that tentacle rape?

Fred: Yes, why?

Andy: If the boss catches you...

Fred: OMGWITFBBQ *tries to alt-tab to ESPN*

*boss walks in*

Boss: Fred, why are you looking at pornography?

Fred: Well I wa-

Boss: I don't want to hear it. You will not be missed.

Fred: FUUUUUUUUUUUUUUUUUUUUUUUUUUUUU-
by InvisibleWater July 01, 2012
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16
Abbreviation used in names of websites/videos/images ect to denote that it wouldn't be safe to view such content at work.
barnyardbabes.com (NSFW)
by robbehnsfw August 14, 2010
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17
1) Not Safe/Suitable For Work. An acronym that could get you fired if your boss sees or a co-worker snitches you out for browsing inappropriate material on the internet, especially if it's nudity.
2) Nude/Nudity Shots/Scenes Fucking Win. A made up acronym I personally thought it stood for when viewing ecchi and sexy hentai photos on Twitter. Although I was wrong I still think this acronym fits better.
1) Billy got fired from the office because Kevin snitched him out for googling nudity pics on the company's PC. Moral of this incident: Don't view material that is nsfw.
2) These pics of Yamato make me gap 24/7. Her nsfw.
by PinoyRiccochet June 11, 2016
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20
Not Safe For Work. Used to describe Internet content generally inappropriate for the typical workplace, i.e., would not be acceptable in the presence of your boss and colleagues (as opposed to SFW, Safe For Work).

basically... porn
by Dave Egbert July 25, 2015
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