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chalkboard 

Having sex with a black woman and ejaculating on her, preferably all over her back.
Dan could write his name, as well as complex calculus problems, on the ethiopian woman's body, making her into his very own chalkboard; Craig, however, had to stick to piss in the snow and geometry.
chalkboard by Jafaar November 9, 2006

Chalkboard 

A term used to secretly tell one person that another seems to have bigger boobs then usual
"Dude, that girl is chalkboard today!!!"
"I noticed!!!"
Chalkboard by pSeUdOnYmduhhhhh January 27, 2009

Chalkboard 

A type of girl that always is talking about fruits
Girl: Omg i was shopping and saw such PRETTY pomegranates!
Guy: Shut up you chalkboard!

Chalkboard 

Jenkins is so chalkboard.
Chalkboard by Chalkboardmcgee July 24, 2025

Chalkboard Club 

A club, usually underground at a school where people draw problems, incredible events, or stories out on a chalkboard and his co members help to solve them or entertain themselves from them.
We goin to Chalkboard Club today or what
Chalkboard Club by Caleb Michaels November 13, 2003

chalkboard syndrome

Black skin so dry and ashy you can draw/ write on it.
Bob: That nigger just takes notes on his arm.
Jim: Oh he is like a walking note pad
Bod: Dude that nigger has chalkboard syndrome don't make fun of him.
chalkboard syndrome by ata1234 December 26, 2014
More from Urban Dictionary
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
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