Let's face it. Your looking this up because someone mentioned this in conversation and you didn't get the memo.
RBF= resting bitch face
When someone's resting face makes them look like a don't mess with me, angry bitch.
You don't know what one looks like until you see it.
RBF= resting bitch face
When someone's resting face makes them look like a don't mess with me, angry bitch.
You don't know what one looks like until you see it.
by Helloitsyourgirl89 March 8, 2019
Get the RBFmug. RBF stands for Resting Bitch Face!
by Love_act January 6, 2017
Get the RBFmug. 
RBF=Resting Bitch Face. That means to always look either serious, mean, rude or bored when you’re face is neutral, or resting. But this doesn’t mean that people with RBF’s are actually mean, it’s just how their face was made :-D.
by jawanna blowme? January 18, 2020
Get the RBFmug. 
by Applesauce Scrotum December 27, 2011
Get the RBFmug.