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Not Safe For Life; when something is so fucked up that even the raunchiest people would be scarred from it
Dude why would you jerk off to murder hentai? That shit is NSFL
by Dubiks May 19, 2019
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Feb 25 Word of the Day
Who fucking knows anymore? First, it meant factual, and now it means fictional. What the fuck, internet... what the fuck?
wrong-->"Oh my god, Jessica, your post literally scared me to death" right--> "I literally wrote this post at 3:04 A.M."
by Deathmatch1127 April 14, 2015
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2
Not Safe For Life. Goes a step beyond NSFW, because it doesn't matter where you view the material; you will be scarred.
Why did I click on goatse? That shit is NSFL
by Jachmaninoff August 17, 2007
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4
NSFL also known as NLS means Not Safe For Life or Not Life Safe normally referring to a link someone or some website has sent you meaning no one should ever see it.
the video at 1guy-1cup.com is NSFL.


by Supremeone January 10, 2009
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5
NSFL also known as NLS means Not Safe For Life or Not Life Safe normally referring to a link someone or some website has sent you meaning no one should ever see it.
www.2girls1cup.com is NSFL no one should ever see that
by Kelby Raper January 27, 2008
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6
Not Safe For Lunch. A warning that linked content is sufficiently horrendous as to be sensibly avoided by the weak of stomach.
This website|image _link_ is NSFL.
by Morosoph October 12, 2008
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