According to a new Gabrielle Chanel biography, Coco was kind of a badass.

Lisa Chaney, author of Coco Chanel: An Intimate Life, dug up some serious dirt on the legendary designer -- one assumes after rolling her over in her grave. In the bio, which comes out in November, Chaney claims Coco was a bisexual drug user who had an affair with a married Salvador Dalí.

Chaney allegedly waded through the Swiss Federal Archives to prove that Chanel also had an affair with a Nazi spy. In an email to WWD, the author's publicist states, "Whether Chanel was aware of this is unknown, but after that war she lived in neutral Switzerland for a while, to avoid any proceedings against her.

Quel scandale! Though I can't wait til they inevitably make a movie out of this book. Standing alongside Audrey Tatou's Coco Before Chanel will be Lindsay Lohan's Coco After Rehab.  [WWD]