quidnunc \KWID-nunk\

(noun)

: a person who seeks to know all the latest news or gossip : busybody

소문 퍼뜨리기 좋아하는 사람, 남의 일을 캐기 좋아하는 사람(busybody)

Example sentence:
I lowered my voice when I noticed that Nancy, the office quidnunc, was standing right next to my cubicle hoping to overhear what I was saying.