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back side bonus 

The frosting that sticks on the bottom side of your donut from the donut below.
Melanie picked out a donut out of the box and received one with a little Back Side Bonus.
back side bonus by Quincerr September 30, 2012

back-side attack 

Term used for the attachment of the nucleophile in an SN2 reaction to kick off the leaving group. In slang, it means to fail a test or have a lot of difficulty on a test, especially an organic chemistry test.
That orgo test just back-side attacked me, SN2 style.
back-side attack by synchrohobbit November 20, 2006

Back side 

Back side by Quazimoto June 5, 2003

Back side 

dairy-air, as in:
i'll put a whuppun 2 ur backside, yah crackuh!
Back side by DCPimp August 24, 2003

pullback back-side 

The act of getting a blowjob from the back.
She is a freak man. I bent over and she pulled my penis to the back and started sucking it.

O so she gave you a pullback back-side blowjob
pullback back-side by slap happy7 December 8, 2011

The back side of the urban dictionary 

Hi! Well uh, thi is even more secret than the secret side uh... Heres the nutrition info of the urban dictionary then.
CALORIES
150
Calcium 40mg 2%
Carbohydrate Total 18g 6%
Cholesterol 0mg 0%
Total Calories 150
Total Fat 8g 10%

Total Fat Saturated Fat 1g 6%

Total Fat Trans Fatty Acids 0g
Iron 0.3mg 0%
Dietary Fiber 1g 4%
Potassium 50mg 0%
Sodium 210mg 9%
Protein 2g
Sugars 1g
IQ 0.000000001 mg
And that is the nutrition info of the back side of the urban dictionary
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
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