RBF 

Acronym for Resting Bitch Face

Omg she looks so mean

No, she just has a severe case of RBF

RBF by PoopyWeaver May 17, 2018

RBF 

Resting Bitch Face

Wow, Sebrina looks like such a bitch...
Nah, man its just her RBF shes actually really nice.

RBF by Shuffling_Seal (twitch *wink*) April 26, 2018

RBG 

RBG is a short form of real bitches gang. this gang is locally in malvern this gang consists of 12,13,14 and 15 year olds and no one messes with them cause they will get there ass beat

"yo did you see that girl in malvern mall shes a RBG girl dont mess with her."

RBG by piece_of_cake June 6, 2018

Rbf 

Resting bitch face

Eww why is she always mean mugging somebody?
She not she just has a rbf

Rbf by Princesserinnnn June 10, 2018

RbD 

RbD is the abbreviation of "Return by Death". Return by Death is traveling back to a certain time that's triggered by death. In the anime "Re:Zero Kara Hajimeru Isekai Seikatsu" the main character (Natsuki Subaru) has this skill, but can't tell anyone about it, the reason for this is currently unknown.

Your RbD is a godsend, Natsuki Subaru. Make the best out of it.
Emilia, I can Return by De-

RbD by dworry June 9, 2018

rb 

rb stands for rant buddy which technically means you rant to them about something, or they rant to you, or you two rant to each other about how complicated your lives are.

man I could really use a rb right now I can’t deal with my problems anymore.

rb by Gabbie June 15, 2018

RBF 

Relevant B!tch Fit

Giiirrllll he messed up my food so I had a RBF

RBF by RedBoiSux June 30, 2018