The phrase "rumor mill" refers to the spreading of stories, gossip, or information that may or may not be true. It represents a situation where rumors or speculation are consistently circulated and discussed among people. Full definition
The transfer rumour mill seems stuck in the forward gear. (justarsenal.com)
Let the media rumour mill do its job and do not deny any rumours so arsenal are linked to many stellar players. (justarsenal.com)
If there was one thing that would improve the quality of discussion on this forum it would be if everyone could get up to speed on how the transfer window / rumour mill works. (justarsenal.com)