Brandon Davis calls Mischa Barton 'One of the fattest people in the planet'

mischa-barton-brandon-davis2.jpg"Greasy Bear" is back! And he's as heinous as ever.

Brandon Davis, Hollywood hanger-on former BFF of Paris Hilton, infamous for calling Lindsay Lohan "Firecrotch" and for his perpetual greasy and sweaty face, ran into his old girlfriend, Mischa Barton, at Nylon Wednesday (April 7).