Noun or adjective describing someone who can't read or write graffiti (tags, throw ups and pieces.)
(A woman sees 2 teenagers bombing)
Woman: Why are you doodling on the wall?
Dude 1: We're reclaiming the streets, getting our name up.
Woman: How are these squiggly lines getting your "name" up?
Dude 1: Well it says Clast, cant you read?
Dude 2: Yo this bitch is graffilliterate!