The son of an infamous mafia don has made ISIS an offer, er, a threat, that they can’t refuse.

If you want your mangled jihadi teeth kicked in by Sicilian organized crime capos, mess with New York City. If you don’t wanna, fine.

Okay, so Giovanni Gambino, son of former crime family boss John Gambino, didn’t say that, exactly. But he did say that the Big Apple is under the protection of the Sicilian Mafia. Because, according to him, they can do a better job than federal agents — such as Homeland Security and the FBI — can.

This from NJ.com:

“The world is dangerous today, but people living in New York neighborhoods with Sicilian connections should feel safe,” Gambino said.

The Islamic extremist groups fear the Sicilian Mafia, which is why underground terror cells haven’t been able to take root in Sicily, according to Gambino.

“We make sure our friends and families are protected from extremists and terrorists, especially the brutal, psychopathic organization that calls itself the Islamic State,” the Sicilian-born Gambino said.

John Gambino was/is actually linked to a South Jersey crime family syndicate. Reportedly, he’s still affiliated with the organization after serving a 15-year prison sentence for drug trafficking and homicide.