Nudnik - n. U.S. colloq. Esp. in Jewish usage: a pestering, nagging, or irritating person
"Top Palestinian militants acknowledge that the militant organization Hamas is hard-pressed to follow through on its threats to wreak havoc inside Israel in response to the successive killings of its two top leaders.
"Hamas might have a crisis on its hands after losing its leaders," said senior Hamas official Ismail Haniyeh at the funeral on Sunday for Abdel Aziz Rantisi, the Hamas leader killed in the Gaza Strip on Saturday."