Dina Lohan Parties Like a Drunken Sailor!

9/2/2013 12:56 AM PDT

Dina Lohan -- Parties Like a Drunken Sailor!


Dina Lohan may not have encountered 15 men on a dead man's chest at a Labor Day party, but it sure looks like she found that bottle of rum.

Dina, who played Tennille to a very eccentric Captain -- millionaire Sir Ivan Wilzig --  partied Sunday at Ivan's estate ... which people call the Playboy Mansion of the East Coast.

Several party-goers tell TMZ ... Dina went full bore, slurring her speech and at times zoning out, as she bragged that Oprah was interviewing her today for the Lindsay Lohan docu-soap. 

We're told Dina was telling people  at the party -- billed as "Sailors and Sinner Soiree" -- she was a good mother.  She also said there was nothing ever wrong with Lindsay.

Even Lindsay doesn't believe that anymore.