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R.B.S, officially known as Random Boner Syndrom, is a disorder in which a male is prone to sporadic erections. This disorder is commonly found in teenage boys.
Boy 1: "What's the matter with Jeff? He left to go home..."
Boy 2: "He has an awful case of R.B.S..."
Boy 1: "Oh... This is the 4th time this month!"
Boy 2: "...You've been counting?"
Boy 1: *walks away*
R.B.S by ♥Lilli K♥ March 16, 2009
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Rigorous Butt Sex-
1.Intense, mostly pleasurable but possibly painful(for either party) anal sex. Mostly used as a humorous example rather than an enticing possibility.
2.A fierce display of buttsexery
3.also Roast Beef Sandwich(how Arbys got its name)
(word origins attributed to Zeb)
"at first she was scared, but after I showed her how, she's been begging me for the R.B.S.

"You gotta have an ass of steel to handle my R.B.S"

"I thought R.B.S was cool til' the doctor had to sew up mysahara rip-dick"
R.B.S by Senor lukas August 1, 2008
Also known as random boner syndrome. It is a condition where a male lacks control over his genitals. Also Known as a rock lobster.
Is that a banana in your pocket or are you just happy to see me. Nether is my R.B.S
R.B.S by Allen Wynn June 14, 2010
R.B.S : Acronym ( Rock Band Syndrome )

Upon hours of game play, pusing 5 mulit-colored buttons and strumming up and down while looking at a scrolling screen, you get R.B.S. otherwise known as "Rock Band Syndrome"

Look away for 1 min you realize everything you just did has now led to you seeing visuals, not to mention everything waving as if you just smoked way too much weed.

The new way to get high without official drug use.
Ken " Dude lets have a rock band party tonight! "

Mark " Costume PARTY, ill bring the beer!!!"

Ken " NOOOOO MAN, trust me you'll get R.B.S. it will feel like your freken TRIPPIN GUY!"

Mark "...................................ok........!"
R.B.S by vt83mk1 February 9, 2010

R.B.S. (Roast Beef Syndrome) 

When a girls pussy lips resemble that of roast beef. They r brown and loose.
Damn bitch u some fine R.B.S. (Roast Beef Syndrome)

Ewww I can smell that R.B.S. outside of your pants

Put that R.B.S right here.

R.B.S. (Restless Boner Syndrome) 

A condition caused by the lack of Vitamin P is a male's every day diet.

Symptoms may include but are not limited to:
-Tossing and turning in bed.
-Anxiety is social situation.
-Terrible morning cramps.
"F-in aye Bob, its been 10 days and this R.B.S. (Restless Boner Syndrome) is just getting worse."
F.R.B's stands for Free Range Boobies. Just like free range chickens the girls allow their boobs to be roaming freely under loose shirts.
Hay dude! Look at the major nipple reaction (MNR) on those F.R.B's. Must be the summer breeze.
F.R.B's by SupaMD July 28, 2007
More from Urban Dictionary
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026
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