Yikes! Bethenny Frankel’s estranged mom, Bernadette Birk, talks to Life & Style exclusively and she has some harsh words about her daughter being a guest judge on Season 9 of Shark Tank.

Bernadette admits she isn’t confident in the Skinnygirl mogul’s business skills.

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“She is a moron,” Bernadette said moments after the news broke that her daughter would be on the ABC show. “She got very lucky, and she just knows how to surround herself with people who are intelligent."

Bernadette, who hasn't spoken to Bethenny since last summer, says, “Bethenny is a liar and a shark. She ran through my guts. She will get along with the other sharks.”

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For more from Bernadette, pick up the new issue of Life & Style magazine, on stands now! To see how much the RHONY stars have changed, check out the gallery below!