What does MFB stand for?

Motherf***ing B****


When especially crass gamers or online chat users get upset, they may use MFB (motherf***ing b****) to express their frustration while circumventing swear filters. Often, MFB is used to insult a specific person, who "wronged" the person who typed MFB.

When should I use MFB?

Likely never. MFB is misogynistic and crude, so it is incredibly ill-mannered to call someone an MFB or even use the acronym in a more general sense. Instead, use a more fun and less derogatory exclamation, such as "Outrageous!," "Egads!," or "I can't believe it!"


That MFB beat me in Quake 4 again
Dude, you gotta chill

Related Slang


Updated June 23, 2021

MFB definition by

This page explains what the acronym "MFB" means. The definition, example, and related terms listed above have been written and compiled by the 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!