Geraldo Rivera has seriously pissed off his fellow Fox News pundit Leo Terrell by challenging his cred in the Black community — and they just went HAM on each other!!!

Geraldo and Leo were on Bill Hemmer’s “America’s Newsroom” Thursday to talk about race and policing, particularly in St. Louis. That city’s Mayor-Elect Tishaura Jones — a Black woman — questioned the “lived experience” of white allies in leading a population that is nearly 50 percent Black.

That remark got Leo all hot and bothered, and as he started going off on Mayor-Elect Jones … Geraldo jumped in with, “Hey, Leo! When was the last time you were in the ghetto?”

Explosion in 3, 2 …

Leo — a famed civil rights attorney for several decades — damn near jumped through the TV screen in his rage at Geraldo. Both men exchanged inner-city resumes, barking out their hometowns. FYI, Leo’s reppin’ the West coast, and Geraldo the East.

You gotta see the fireworks. Far as we can tell, the only real winner is Fox News’ ratings. We doubt Geraldo and Leo will be breaking bread anytime soon.

Oh, and poor Hemmer — aka white guy-in-the-middle.