ditzy artist
An artist who is always sociologically clueless, and pretends(?) to act innocent, even when presented with the facts.  Very eccentric.  Often seen as dumb in the general public, but can create great peices of art.
"That guy that never talks streaked our school?"
"Yah, but he's not retarded - he's an artist."
"Ohhhhh, a ditzy artist?"
"Yah."