Definition & Meaning of "gossip mill"in English

What does "gossip mill" mean in casual slang?

It is used to describe a place or group where rumors and gossip spread quickly and continuously, such as an office, a small town, a school, or a social circle. People typically say "The gossip mill is already working overtime" or "He's the subject of the office gossip mill" when referring to fast spreading chatter. The term originated in early 20th century American English, playing on the older phrase "rumor mill," and remains common in casual conversation.