Harvey Fierstein isn’t afraid to bite back at his critics.

When “A Catered Affair,” the new Broadway-bound tuner by Fierstein and composer John Bucchino, opened last week at San Diego’s Old Globe, it earned largely positive reviews — except for one.

Writing in the Los Angeles Times about the musical, based on an original story by Paddy Chayefsky, Charles McNulty asked, “Should we really be trawling for such mediocre source material without a sharp revitalizing vision? Chayefsky’s expiration date passed long ago, yet Fierstein serves up the saga as though it were fresh milk.”

Fierstein, who has been chronicling the backstage process on his blog, wrote in response: “Bullies don’t play fair, do they? He dismissed our show before even entering the theater. I think his newspaper should do likewise with his contract.”

Fierstein, who appears in the musical, also took issue with the opinion held by McNulty and other critics that the writer-thesp’s gay-uncle character comes off as a little too post-Stonewall for the tuner’s 1950s setting.

Fierstein shot back that his careful research into the period suggests otherwise.