What is Chalkboard?
1.
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.
See
2.
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!!!"
See
