What does SFB stand for?

S*** for brains


SFB stands for "S*** for brains," which is a way to describe someone who is not very smart. The acronym is most often seen online and in text messages.

It is typically used in reaction to someone saying or doing something very stupid. Or it may be seen posted on social media with an image or video of someone doing something idiotic, like jumping off of a cliff or almost blowing up a body part with fireworks.


I must have sfb today, I can't do anything right

Related Slang


Updated June 5, 2020

SFB definition by Slang.net

This page explains what the acronym "SFB" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.

We are constantly updating our database with new slang terms, acronyms, and abbreviations. If you would like to suggest a term or an update to an existing one, please let us know!