Michael Jackson's Lawyer -- Wade Robson Is a Money-Grubbing Liar

The lawyer who repped Michael Jackson in the 2005 molestation case is scoffing at Wade Robson's interview on "Today," telling TMZ, "This is a pathetic and an obvious grab for publicity and an attempt to put pressure on the [Michael Jackson] Estate to pay him money."

Tom Mesereau tells us Robson is flat-out lying when he says this is not about money, saying, "Why call yourself a creditor if it's not about money." TMZ broke the story ... Robson has filed a belated creditor's claim with the MJ Estate.

Mesereau says Robson was grilled by the prosecutor in the 2005 criminal case and was unwavering. He says it's simply unbelievable that the truth didn't surface when Robson was on the stand. Mesereau says Robson is an intelligent guy who has volunteered statements in and out of court, defending Michael.

As for the money ... Mesereau tells us, "Everyone knows this Estate is well over a billion dollars and growing."

For the record, it's not at a billion bucks yet, but the Estate has made hundreds of millions of dollars and it will probably hit the billion dollar mark.