A report published today says Parker "charged" toward a female colleague Tuesday night during several hours of heated debate over whether to toss Monserrate from the chamber.
Parker dropped several "f-bombs" and called Savino "a b----" as she tried to explain why Monserrate could be immediately expelled with Republican votes, the sources told the News.
Parker apparently took issue with the idea that Republican opinion could be an issue in the matter.
Eventually Savino told Parker to stop interrupting her and that's when Parker turned a gentlemanly phrase, yelling "F--k you!" Savino did miss a beat -- firing the same statement back -- and that's when Parker stormed at her, the source said.
Parker was allegedly held back by Senate Democratic Conference Leader John Sampson, the news said.
Savino downplayed the incident yesterday, explaining she and Parker "exchanged some words."
Parker in part earned his reputation as a hot-head after being accused of punching a photog. The incident landed him in court.