RFB 

A Rebel Flag Bikini. A Bikini made from the rebel flag. Usually sported by Rednecks in the South

That girl is hot in her RFB. The south shall rise again....in my pants

RFB by asfasfsdf August 3, 2009

rfb 

n. - Acronym, standing for RANDOM FUCKING BONER. Used in reference to the erection one gets at the most impromtu of times, such as while sitting in a lecture about the holocaust, or while watching your sister's birth video. It never makes sense, but it happens nevertheless.

Dude, I was sitting in church during the Easter mass, and right when I went for communion, I had the world's hardest RFB! And I was wearing DRESS PANTS! ...I think Father Frank was getting an idea....

rfb by cmsjds May 9, 2006

rfb 

"random fucking bozo"

i have better things to do than give free tech support to some rfb who happens to meet me on the street

rfb by Albin Pahernik September 28, 2004

RFB 

Run From Bitches- it is a backpack that has two or more clips that go around the stomach so you can run from that bitch in school that always wants to talk to you but u just cant stand the sight of her.

Cam: dude i need a rfb backpack
joe: why do you need that
Cam: so i can run from bitches

RFB by Dainnerflame August 31, 2010

rfb 

Royal Fucking Break
A stronger version of "break" (in the sense of "Give me a break"), used in response to someone who has been whining, exaggerating, boasting, etc.

"I had classes all morning, was on my feet at the shop until six and now I've gotta clean the whole house before I go to bed."
"Aw, gimme an RFB. You think you've got it bad? I haven't slept for two whole days!"

"I just came up with a solution to the Middle East crisis and now the White House has invited me to Washington."
"Yeah, right. Give me an RFB!"

rfb by squatter July 16, 2008

RFB 

"Really Fucking Bright"

A) Bright as in intelegence

B) Bright as in light

A) DAMN, you must feel RFB after walking into that wall...

B) Man... you kept me up till 6:00 in the morning now it's RFB outside...

RFB by Rayneuki July 15, 2005

RFB 

Acronym for Radical Feminist Bitch. Male or Female that follows the tenants of Radical Feminism. RFB males are identified by their skinny jeans, skinny arms, and man buns. Mostly soy drinkers, they also spend most their time hanging at Starbucks drinking Grande Lattes. Females are mostly fat and ugly with loud shrill voices.

Joe: "Hey Buck, check out that soy boy over there in his skinny jeans with his Grande Latte talking to the fat ugly chick with the horned rimmed glasses."
Buck: "Yeah, both must be RFBs."

RFB by B. Gabbert October 2, 2018