What does NSFL stand for?

Not safe for life

When you encounter the term ‘NSFL’, it stands for “not safe for life”. This acronym is used to mark links, posts, or videos that consist of generally disturbing or unpleasant content. For instance, a user on a website like Reddit might label a particularly gruesome video as NSFL, giving you a heads up that it might be something you’d prefer not to see.

At times, the tag NSFL is also applied to extremely offensive content. This serves as a warning that the content is likely to upset you or make you uncomfortable. Regardless of the reason why something is labeled as NSFL, it’s usually a good idea to steer clear of it.

Example for using ‘NSFL’ in a conversation

Hey, have you seen that new horror movie?

Yeah, I watched it last night. It’s NSFL, be warned!

Oh, really? I’m not a fan of gory stuff. Thanks for the heads up!

No problem, I don’t want you having nightmares. Stick to something less intense!