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.
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.
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.