NSFB

NSFB means Not Safe For the Brain. It refers to any fic that makes a negative amount of sense. Sometimes rendered Not Brainsafe or NBS. It is akin to NSFW, and they sometimes overlap.

All Legendary Badfic and bleepfic, and a good deal of badfic, is considered NSFB. Therefore, one must take extreme caution to avoid reading it (unless of course one is a masochist or a PPC agent on a dare).

Any link that leads directly to something that is NSFB should be marked to avoid unnecessary squick.

NSFB fic can cause insanity and high Bleeprin consumption in agents who have the misfortune of being assigned to such "masterpieces".