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.
Jim: Oh he is like a walking note pad
Bod: Dude that nigger has chalkboard syndrome don't make fun of him.