Lohans-Mugshot230new.jpgMichael Lohan has been jailed in Florida for allegedly threatening to throw his on-again, off-again girlfriend Kate Major, 28, off a balcony.

Lindsay Lohan's dad, 51, was arrested Tuesday on domestic battery charges.

In the police report, Major told police that she and Lohan have lived together for the past two years ... on and off.

She went on to say that she allowed Lohan to stay over at her place when he arrived at the door Sunday night.

Kate, who claims Michael became violent after she refused to give him oral sex, added that Lindsay's dad threw the remote at her.

She added in the police report that she was suffering from shoulder pain and minor bruising.

Michael Lohan has yet to issue a statement regarding the incident.