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Anne Heche has it in for her ex-husband and let it out last night in an interview with David Letterman.She branding Coley Laffoon a "lazy ass."

"Oh gosh, can you say 'lazy ass' on television?" Heche asked, referring to Coley Laffoon, the father of her 7-year old son, Homer, to whom she pays monthly child support.

"No, no, no. That's terrible," the 40-year-old actress said on "The Late Show with David Letterman."

And she didn't stop there, explaining to the amused audience about how Laffoon makes a living: "He goes out to the mailbox and he opens up the little mailbox door and goes, 'Oh! I got a check from Anne! Oh! I got a check from Anne! Yay!'"

Heche and Laffoon went through a messy two year divorce that was only finalized in March. The pair share a son, six-year-old Homer, and Heche pays Laffoon child support for him.

During the ex-couple's two-year drag 'em out, Heche said that Laffoon, 35, craved "porn, poker and money." He claimed she was mentally unstable, according to People.com.

Heche, now costarring on HBO's "Hung," is involved with former "Men in Trees" James Tupper. The couple had a baby boy, Atlas Heche Tupper, earlier this year.