Chris Cuomo caught on video in profane rant after being called 'Fredo,' says it's the 'N-word for Italians.'

CNN anchor Chris Cuomo, son of former New York Governor Mario Cuomo and brother of current New York Governor Andrew Cuomo, will fight you if you imply that he's the dumbest member of his family.

In a video that is now going viral on Twitter and in the White House, a notorious right-wing YouTuber accosted Cuomo by calling him "Fredo," a classic insult referring to Fredo Corleone, the dumb downfall of The Godfather's mob family.

Cuomo took offense to that bro-ey pop culture reference, insisting that Fredo amounts to an ethnic slur when used against Italian Americans.

"Are any of you Italian?" Cuomo asked the men he called "punk-ass bitches." "It’s an insult to your people. … It’s like the n-word for us."

Cuomo really went to the mattresses, saying, "I'll f*cking ruin your sh*t. I’ll fucking throw you down these stairs."