Just when we thought we were out, she pulls us back in …

Lindsay Lohan behaved “insanely belligerent” -- and got into a verbal fight with a worker -- during an all-night kickback last week with pals at New York's Sing Sing Karaoke bar, Breaking Celebrity News has learned.

An insider told the NY Daily News that “Lindsay was chain-smoking" throughout the outing at the East Village pub, where she and her hangers-on primarily hung out in a private karaoke room.

While LiLo was overheard saying she wasn't boozing, her entourage sure was, draining a bottle of Jameson, and leaving the room they were in a mess of empty liquor bottles and garbage.

At one point, Lohan pleaded with staff to keep the bar open after its' designated closing time, which led to a “disturbance.”

After staffers asked her to hit the road, LiLo summoned the NYPD to the scene, where she said that they had held her captive in a private karaoke room, the insider told the paper. Police did not take a report of the incident.