2 definitions by poindexter
by poindexter May 9, 2006
Web sites with large pictures often display NSF56K meaning "Not Safe/Suitable for 56K". Contrast with NSFW, "Not Safe/Suitable for work", used to mark questionable content should your boss be shoulder surfing.
Those jpgs of Veronica Zemanova are 800K each! Definitely NSF56K
by poindexter December 2, 2003