“Here’s what the Jersey attitude is to you: Buy your damn gas in New York, then,” Mr. Christie said, going on to let loose a few profanities of his own to bring the point home.

But his act, once largely seen as endearing, has seemingly worn thin on New Jerseyans.

“Christie may have found the floor for his ratings, but it’s a level where most of his constituents now feel his time” in office has hurt the state, Patrick Murray, the director of the Monmouth University Polling Institute, said in a statement. Now, for the first time, according to the Monmouth poll, a majority of Mr. Christie’s constituents say New Jersey is worse off as a result of his tumultuous tenure.

Indeed, the many low points of Mr. Christie’s tenure — the George Washington Bridge scandal, a failed presidential campaign that took him out of the state for more than 500 days, his failure to get a top position in the Trump administration, and an aging transportation infrastructure — have left a large majority of Mr. Christie’s constituents fuming, which occasionally spilled onto the WFAN airwaves on Monday.

“I represent the 85 percent of these people in this state who do not prefer you as governor,” said another caller, identified as John from Montclair. “I think you’ve done an awful job.”

The playful tone from Mr. Christie’s voice from his last exchange (Bobby from Westchester told the governor his only problem was that he was a Dallas Cowboys fan) quickly dissipated.

He derided John, then called Hillary Clinton a “criminal” and taunted his former opponents.

“You lost twice, John,” he said, ostensibly referring to the Democrats Mr. Christie defeated in his two campaigns for governor. “So that shows how much you matter.”

When he stuck to sports, Mr. Christie seemed studied. He lamented the state of the Knicks, calling their 2011 decision to remove Donnie Walsh as president for basketball operations their “single biggest mistake.” He argued that Tim Hardaway Jr.’s new contract with the Knicks, at $71 million, was likely to be another albatross.