Dina Lohan has started the latest round of Lohan Family Feud, by claiming that her ex-husband Michael Lohan used to beat her up in front of a young Lindsay.

She says, quote, "Lindsay saw her dad abuse me . . . that's why she's so screwed up. She saw a lot of crazy stuff. I want the world to know the root of her problems."

Dina also claims that Michael RAPED her in 1990. They were still married at the time, but estranged.

Michael is basically denying all this. And he says, quote, "She's bringing this up now because she's drinking and partying with Lindsay. And she keeps robbing Lindsay. She is the devil."