Charles Barkley had a ruthless comeback after a bunch of Warriors fans heckled him on Thursday ... saying, "If you don't leave me alone, I'm going to come to your house and f*** your mama!!"
Chuck was in the Bay Area to cover the Western Conference Finals with TNT's "Inside the NBA" ... and as he sat on set outside Golden State's Chase Center, some spectators in the background went after him about having zero rings.
"Charles, spell championship," one fan yelled out .