Nudnik - n. U.S. colloq. Esp. in Jewish usage: a pestering, nagging, or irritating person
"Michael Moore and I actually have a lot in common - we both appreciate living in a country where there's free expression," Eastwood told the star-dotted crowd attending the National Board of Review awards dinner at Tavern on the Green, where Eastwood picked up a Special Filmmaking Achievement prize for "Million Dollar Baby."
Then, the Republican-leaning actor/director advised the lefty filmmaker: "But, Michael, if you ever show up at my front door with a camera - I'll kill you."