ALEC BALDWIN, not a mellow dude, as he BLASTS OFF following claims after the epic funeral for JAMES GANDOLFINI.

Baldwin, 55,  fired off a furious series of tweets — some containing threatening and homophobic turns of phrase — toward a UK Daily Mail scribe George Stark, who wrote a report that the actor’s wife Hilaria was tweeting during James Gandolfini’s funeral Thursday.

In the series of tweets, the oft volatile star, who uses the handle @ABFalecbaldwin, blasted away: “Someone wrote that my wife was tweeting at a funeral. Hey. That’s not true. But I’m gonna tweet at your funeral …

”George Stark, you lying little bitch. I am gonna f%#@ you up …

“I want all of my followers and beyond to straighten out this f***ing little bitch Stark …

“My wife and I attend a funeral to pay our respects to an old friend, and some toxic Brit writes this f**ing trash

“If put my foot up your f***ing ass, George Stark, but I’m sure you’d dig it too much …

 “I’m gonna find you, George Stark, you toxic little queen, and I’m gonna f***…you…up.”

And in what might be his final tweet ever, Baldwin wrote, “My wife DID NOT use her phone, in any capacity, at our friends funeral. Now, f*** this twitter + good luck to all of you who know the truth.”

Hilaria Baldwin emphatically denied tweeting during the emotional service for The Sopranos star, writing, “FYI I don’t believe in bringing phones into a funeral and I never did and I never would.”

Baldwin, who’s had famous meltdowns aimed at everyone from flight attendants to the paparazzi to his own daughter, then shutered his account, RadarOnline divulged.