Not Safe For Life. Stuff that isn’t appropriate no matter where you are, how old you are, or what time it is. NSFL content is usually gore. Examples of NSFL content include: Goatse, kekma.ga, a lot of videos on Liveleak, 1 Guy 1 Jar, 2 Guys 1 Hammer, etc.
acronym for No Soup For You; originated from the Seinfeld episode, The Soup Nazi; often shouted angrily when you an individual doesn't get something they wanted, for little or no obvious reason
An acronym that stands for "Not Safe For Your Ears".
As one example, you may use this acronym on YouTube when your video contains an audio (sound) component that some viewers may find distasteful, such as heavy metal music like Anthrax or Megadeth.
{in the YouTube description of a video I made and uploaded myself}:
*NSFYE* (Not Safe For Your Ears). A video of the Syma S107G R/C Coaxial Helicopter flying in my room, set to another Anthrax song.
Abort this video immediately if you find thrash metal music distasteful.
That music you hear is the song "Howling Furies" by Anthrax. This heli is not sound-sensitive; the audio may safely be ignored or even muted if it pisses you off.
Basically, NSFL means “not safe for life”. It’s when something is so scarring that even Satan himself would fear it. A lot of Bait-And-Switch sites use NSFL content for “a joke” when it’s really not. Some of these Bait-And-Switch include, but are not limited to: kekma.ga, dance.swf ,womansalliance.xyz and so on. Those are just some examples
User 1: Hey, Mike! You should check out (bait and switch site)! It’s so cool!
User 2: First, how do you know my name, and second, I’m not clicking that link.
User 1: Just click it!
User 2: Ok, fine. (clicks it) WHAT IN THE LIVING FUC~!
Moral: Don’t click on random links. It could be one of those NSFL sites.