Leave it to the left to be their own worst enemy -- again, Bill Maher said Friday night.

The "Real Time" host slammed the "Defund the police" mantra -- claiming the slogan threatens any gains in police reform that liberals and Democrats may have hoped to gain following the death of George Floyd.

Many people are simply unclear about what "Defund the police" even means, he said during his opening monologue.

"Liberals want to take police money, police funds and divert it to community services, which sounds like a very good thing, good idea," Maher said. "But they're calling it 'Defund the police,' which sounds bad!

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"That's so 'Democrats' for you," he continued. "You know, they must have meetings to be this f---ing stupid about politics. 'Hey guys, we're making some headway here, how could we turn this into something that makes people have to vote for Trump?'"

"That's so 'Democrats' for you. You know, they must have meetings to be this f---ing stupid about politics."

— Bill Maher

Later, during the show's panel discussion, Maher reiterated that the "defunding" branding was a "terrible way to put it," noting how "only a third" of black Americans support the idea of defunding the police. He also pointed to the ousting of Minneapolis Mayor Jacob Frey from a Black Lives Matter protest because the mayor said he wouldn't abolish the city's police department.

"I worry that Democrats are wandering into another purity test that's not going to serve them well," Maher said. "And it's going to be about how much you want to get rid of police altogether."

Maher went on to praise Democratic lawmakers for their "very good" police reform bill, but mocked "woke liberals" for the uproar over top Democrats wearing kente cloths in honor of George Floyd.

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Comedian Larry Wilmore called it the "Pander Express on the highway," but Maher defended the Democrats since the Congressional Black Caucus had asked them to wear the kente cloth and stressed they "would have gotten more s---" if they refused.

"The Democrats ... they're horrible. They put themselves in this no-win box and they did it to themselves," Maher complained.